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TikTok sale puts app’s algorithm in the spotlight – a social media expert explains how the For You Page works and what changes are in store

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TikTok
TikTok appears to be changing hands, but what that means for users is up in the air. Stefani Reynolds/AFP via Getty Images

Kelley Cotter, Penn State

President Donald Trump announced on Sept. 19, 2025, a preliminary agreement for the sale of a majority stake in TikTok from Chinese tech giant ByteDance to a group of U.S. investors following Trump’s negotiation with Chinese leader Xi Jinping.

The deal would create a new U.S.-only version of the app, bringing it into compliance with a law signed by former President Joe Biden on April 23, 2024, and upheld by the Supreme Court on Jan. 17, 2025. Specifics of the deal remain to be hammered out, but some details are emerging. These include what will happen to the video-sharing app’s core algorithm – and what that means for TikTok’s millions of U.S. users.

The Chinese government has indicated it will not permit ByteDance to sell the algorithm, because it is classified as a controlled technology export, per Chinese law. Meanwhile, U.S. tech industry executives and some lawmakers say compliance with the law requires the algorithm to be under American control. The deal as proposed includes licensing the algorithm so that it remains Chinese intellectual property while the U.S. version of the app continues to use the technology.

TikTok’s For You Page algorithm is widely considered the most important part of the app. As one analyst put it: “Buying TikTok without the algorithm would be like buying a Ferrari without the engine.”

The algorithm’s value lies in its uncanny capacity to anticipate users’ content preferences. Many users claim it knows them better than they know themselves — a sentiment that has evolved into a curious mix of spiritual belief and conspiracy theorizing, as my colleagues and I have documented. Other scholars have similarly noted that users feel more intimately seen and known by TikTok’s algorithm than those powering other popular platforms.

I have studied social media algorithms for nearly a decade, exploring how our relationships with them have evolved as they become increasingly entwined with daily life. As both a social media scholar and TikTok devotee, I want to shed some light on how the algorithm works and how the app is likely to change in the wake of its sale.

How the TikTok algorithm works

In some ways, the TikTok algorithm does not differ significantly from other social media algorithms. At their core, algorithms are merely a series of steps used to accomplish a specific goal. They perform mathematical computations to optimize output in service of that goal.

There are two layers to the TikTok algorithm. First, there is the abstract layer that defines the outcome developers wish to accomplish. An internal document shared with The New York Times specified that TikTok’s algorithm optimizes for four goals: “user value,” “long-term user value,” “creator value” and “platform value.”

But how do you turn these goals into math? What does an abstract concept like “user value” even mean? It’s not practical to ask users whether they value their experience every time they visit the site. Instead, TikTok relies on proxy signals that translate abstract outcomes into quantifiable measures — specifically, likes, comments, shares, follows, time spent on a given video and other user-behavior data. These signals then become part of an equation to predict two key concrete outcomes: “retention,” or the likelihood that a user will return to the site, and “time spent” on the app.

The TikTok For You Page algorithm relies on machine learning for predicting retention and time spent. Machine learning is a computational process in which an algorithm learns patterns in a dataset, with little or no human guidance, to produce the best equation to predict an outcome. Through learning patterns, the algorithm determines how much individual data signals matter for coming up with a precise prediction.

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A Wall Street Journal investigation found that the amount of time users spend watching each video plays a large role in how the algorithm chooses videos it suggests to users. Using the equation it has generated to predict retention and time spent, the algorithm assigns a score to each video and ranks possible videos that could be shown to the user by this score. The higher the score for an individual user, the more likely the video will appear in their feed.

Of course, content characteristics and other users additionally inform recommendations, and there are other subprocesses folded into the equation. This step is where algorithmic moderation usually comes in. If a video looks like engagement bait or has excessive gore, for example, the content’s score will be penalized.

Here are the basics of how TikTok’s algorithm works.

What’s likely to change for US users

The sale has not been finalized, but the algorithm’s fate is coming into focus. According to reports, the United States-only version of the algorithm will be retrained on only U.S. users’ data. Users won’t need to download a new version of the app for the changed algorithm to work.

Even though the algorithm itself is the same as before, it’s fairly certain that TikTok will change. I see two key reasons for change.

First, the proposed app’s U.S.-only user population will alter the makeup of the underlying dataset informing algorithmic recommendations on an ongoing basis. As the kinds of content come to reflect American cultural preferences, values and behaviors, the algorithm may be slightly different as it “learns” new patterns.

Though users are more likely to stick with the app because they don’t need to download a new version, not all users will choose to, especially if it is seen as under the control of Trump’s allies. **Under the current deal, Oracle Corp. and the U.S. government would oversee the algorithm’s retraining. This arrangement suggests that the U.S. government may have significant influence over how the app works.

The deal would give an 80% share to U.S. investors, including 50% to new investors Oracle, Silver Lake and Andreessen Horowitz. These investors have connections to Trump, and an apparent provision of the deal allows the U.S. government to select one board member.

These influences raise the possibility of a boycott from left-leaning users and creators similar to earlier boycotts of Target for rolling back DEI measures and Disney after the since-reversed suspension of Jimmy Kimmel. This may result in a user population – and data – reflective of a narrower realm of interests and ideologies.

Second, it’s possible that the majority shareowners of the new app will decide to adjust the algorithm, particularly when it comes to content moderation. The new owners may wish to modify TikTok’s Community Guidelines according to their view of acceptable and unacceptable speech.

For example, TikTok’s current Community Guidelines prohibit misinformation and work with independent fact-checkers to assess the accuracy of content. While Meta used to follow a similar approach for Instagram and Facebook, in January 2025 Meta announced that it would end its relationships with independent fact-checkers and loosen content restrictions. YouTube has similarly relaxed its content moderation this year.

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With reports that the U.S. government would oversee retraining the algorithm, there’s a possibility that not only the new investors but also the government itself could influence how content is prioritized and moderated.

The bottom line is algorithms are highly sensitive to context. They reflect the interests, values and worldviews of the people who build them, the preferences and behaviors of people whose data informs their models and the legal and economic contexts they operate within.

This means that while it’s difficult to predict exactly what a U.S.-only TikTok will be like, it’s safe to assume it will not be a perfect mirror image of the current app.

This story was updated on Sept. 23, 2025, to include new details about TikTok’s sale.

Kelley Cotter, Assistant Professor of Information Sciences and Technology, Penn State

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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There’s Only One Race: Human—A Message of Unity That Must Not Erase Reality

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The phrase “There’s only one race: human” is simple, hopeful and deeply appealing. It reminds us that beneath differences in skin color, ancestry, nationality and culture, we are members of the same human family.

Diverse people standing together to represent one human family
Diverse people standing together to represent one human family

We share the same basic needs. We want safety, dignity, opportunity, love and a better future for the people we care about. No racial category makes one person more human—or more deserving of respect—than another.

At its best, the phrase rejects the false idea that humanity is divided into separate biological races with different levels of intelligence, character or worth. Those beliefs have been used throughout history to justify slavery, segregation, colonialism and discrimination. Saying that there is only one human race can therefore be a powerful declaration of equality.

But the meaning of the phrase depends on how we use it.

Shared Humanity Does Not Mean Identical Experiences

Although race does not separate people into distinct biological types, racial categories still carry enormous social power. They have shaped laws, neighborhoods, schools, employment, policing, health care and access to wealth. Their consequences do not disappear simply because we say that everyone is human.

That is why “There’s only one race: human” should never become another way of saying, “I don’t see color,” when someone is describing racism or inequality.

Ignoring race does not automatically end racism. In some situations, it can prevent us from recognizing it.

If one group repeatedly encounters barriers that others do not, acknowledging those differences is not an attempt to divide people. It is part of understanding the problem honestly. We cannot repair an injustice that we refuse to see.

Our Differences Are Not the Problem

Human unity does not require sameness. Our cultural identities, traditions, histories and communities are not obstacles that must be erased before we can respect one another.

There is nothing contradictory about celebrating Black history, Latino heritage, Indigenous traditions, Asian American experiences or the many cultures that contribute to our society while also believing in our common humanity.

The problem is not that people have differences. The problem begins when those differences are assigned a hierarchy—when one identity is treated as the standard and another as inferior, threatening or less deserving.

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Real unity allows people to bring their complete identities into the room. It does not demand that they leave their histories at the door.

A Statement That Should Lead to Action

If we truly believe there is only one human race, that belief should influence how we treat people. It should lead us to oppose discrimination even when we are not its target. It should make us question stereotypes, listen to experiences different from our own and defend the dignity of people whose backgrounds we may not fully understand.

Shared humanity is more than a comforting slogan. It is a responsibility.

It asks us to recognize that another person’s pain matters, even when it is unfamiliar to us. It reminds us that no community is disposable and that injustice against one group ultimately damages the society we all share.

One Human Family, Many Human Stories

To me, “There’s only one race: human” is most meaningful when it brings two truths together: we are fundamentally equal, and we do not all experience the world in the same way.

We can affirm that there is one human family without pretending racism has disappeared. We can value what connects us without erasing what makes our communities distinct. We can pursue unity while still confronting the inequalities that stand in its way.

Perhaps the fullest version of the message is this:

We are one human family. Our differences deserve respect, our histories deserve acknowledgment, and every person deserves equal dignity.

That is not merely an ideal. It is a standard by which we can judge our choices, our institutions and the kind of world we are building together.

What does the phrase “There’s only one race: human” mean to you? Share your perspective in the comments.

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California and Minnesota Face $1B Medicaid Funding Hold

The Trump administration is withholding more than $1 billion in Medicaid funding from California and Minnesota over disputed medical claims. A social-policy historian examines how concerns about fraud have historically been used to justify funding cuts and undermine public confidence in Medicaid.

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Agents, many wearing jackets or vests emblazoned with 'FBI,' exit a building with what appears to be a trove of documents.Medicaid Funding.
Federal agents execute a search in December 2025 tied to potential Medicaid fraud in Bloomington, Minn. Christopher Juhn/Anadolu via Getty Images

Ben Zdencanovic, University of Cambridge

California and Minnesota Face $1B Medicaid Funding Hold

The Trump administration announced on July 21, 2026, that it’s withholding US$867 million in federal healthcare funding for California and $200 million for Minnesota – a total of more than $1 billion.

Federal officials said the two states had failed to provide sufficient evidence that a number of disputed medical claims were legitimate. These include bills for in-home care and other services covered by the two states’ Medicaid programs for low-income residents.

Medicaid administrators say the funds can be recovered if the states supply the requested documentation. But the action is highly unusual: Typically, Medicaid officials partner with states to conduct an audit when they suspect fraud, a careful process that often takes years.

It’s the second time in 2026 that the Trump administration has withheld or deferred federal Medicaid funds for several states, including California and Minnesota, because of alleged fraud and abuse. The Democratic governors of those states have called the decision a politically motivated attack on their constituents.

I’m a historian of social policy who led the first comprehensive historical overview of Medi-Cal, California’s statewide Medicaid system. I’ve found that U.S. leaders have long used the language of fraud and abuse to blur the line between correcting very real failures within Medicaid and – as I believe the Trump administration is currently doing – discrediting and defunding the program itself.

Who pays when Medicaid is cut? It affects children’s health care, nursing home care, disability services and health insurance.

Slashing the safety net

The Medicaid restrictions are part of the Trump administration’s overall efforts to slash federal funding for the safety net.

The large tax-and-spending bill that Trump signed into law in July 2025 as the cornerstone of his second-term agenda pared eligibility for Medicaid by introducing work requirements for some adults. It is cutting close to $1 trillion in federal spending on the program over the next decade.

Researchers estimate that almost 12 million people, on top of the estimated 28 million without health insurance in 2025, could become uninsured by 2034 due to these changes. By mid-2026, more than 3 million people had already lost their insurance coverage due to Republican changes to the Affordable Care Act.

‘Padlocking’ the ‘cookie jar’

In February 2026, Vice President JD Vance, Health Secretary Robert F. Kennedy Jr. and Dr. Mehmet Oz, the administrator of the Centers for Medicare & Medicaid Services, or CMS, announced a new anti-fraud initiative called Comprehensive Regulations to Uncover Suspicious Healthcare.

Also known by its rather unsubtle acronym, CRUSH, this initiative is taking unprecedented steps to withhold and defer funds in response to suspected fraud. “CMS is done trying to catch fraudsters with their hands in the cookie jar,” Oz said in announcing CRUSH’s formation. “Instead, we’re padlocking the jar and letting them starve.”

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To be sure, Medicaid fraud, waste and abuse – such as providers billing Medicaid for services that are unnecessary or never rendered – are very real problems that cost taxpayers billions of dollars annually. They do divert funds from the low-income and disabled Americans enrolled in the program.

But the Trump administration’s latest moves are part of a much broader history of weaponizing Medicaid fraud and abuse – both real and imagined. I see them as a politicized attempt to prove that Medicaid itself is wasteful, that state governments cannot be trusted to administer federal money, and that public benefits inevitably invite dishonesty.

Robert F. Kennedy Jr. points to a chart pertaining to Medicaid fraud.
Secretary of Health and Human Services Robert F. Kennedy Jr. speaks about alleged Medicaid fraud and charges in Minneapolis in May 2026. Christopher Juhn/Anadolu via Getty Images

Providing little oversight at the start

Medicaid was established, along with Medicare for older adults, in 1965 as part of President Lyndon B. Johnson’s “Great Society” reforms. Despite providing millions of Americans with health insurance coverage for the first time, these programs had few centralized mechanisms for the kind of federal oversight that could prevent and catch fraud and abuse.

And the sheer scale and complexity of the Medicaid system – joint federal-state funding, varying eligibility requirements, millions of enrollees and thousands of providers – created opportunities for questionable billing practices among providers.

The 1970s saw a number of highly publicized Medicaid scandals involving nursing homes, laboratories, pharmacies and so-called “Medicaid mills” – healthcare providers that sought to bill the government for large numbers of Medicaid patients for shoddy and often fraudulent care.

A series of high-profile congressional investigations spurred demand for stronger Medicaid oversight and enforcement. That led to the Medicare-Medicaid Anti-Fraud and Abuse Amendments of 1977, which established the national Medicaid Fraud Control Units program.

The state-run Medicaid Fraud Control Units received generous federal matching funds to investigate and prosecute fraud.

The most serious Medicaid fraud was generally committed by healthcare providers and contractors, not patients. Medicaid Fraud Control Units were principally responsible for investigating providers, while also prosecuting the abuse and neglect of patients whose care was billed to Medicaid.

At the same time, however, Medicaid was becoming entangled in a broader political debate over social spending, whether many Americans were becoming too dependent on government benefits, and the alleged use of benefits by people who should not have received them. In the 1980s and 1990s, widely circulated stories about Medicaid exposed fraud and malfeasance by providers.

But disproportionately, they also highlighted the comparatively few instances of fraud by people enrolled in the program, such as cases where they submitted false receipts for covered medically related travel or sold drugs they obtained through Medicaid for free or at low cost.

Using Medicare fraud to justify spending cuts

The distinction between Medicaid and cash assistance programs, such as the Aid to Families with Dependent Children “welfare” program, frequently disappeared in political rhetoric. False or exaggerated stories that portrayed African American single mothers living extravagantly while fraudulently claiming welfare benefits became potent symbols of supposed government failure.

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While campaigning as a presidential candidate, Ronald Reagan seized on this trope of the “welfare queen” in his attacks on social spending.

A large crowd of people wait on lines in a black and white photo from the 1970s.
People line up at the Baltimore City Welfare Office in 1975, years before concerns about social spending led to big cuts to safety net programs. O’Halloran/Library of Congress via Getty Images

By the mid-1990s, opposition to welfare programs had become increasingly bipartisan. Politicians in both parties often used tales of Medicaid fraud on the part of providers and recipients to justify tighter eligibility rules and spending cuts.

Federal oversight expanded further with the Deficit Reduction Act of 2005, which created the Medicaid Integrity Program and strengthened federal oversight of state programs. The Affordable Care Act, the landmark healthcare legislation Congress passed in 2010, added new measures to screen providers and verify billing.

Concerns about Medicaid’s “integrity” became highly politicized in the debates surrounding the ACA. Critics of Medicaid expansion argued that increasing the number of people who could get health insurance through the program would increase fraud and improper enrollment. Supporters of expanding Medicaid to help more Americans gain health insurance maintained that anti-fraud rhetoric often disguised ideological opposition to the program’s expansion.

Blurring distinctions then and now

For the six decades that this program has helped millions of low-income Americans get healthcare, politicians have blurred the distinction between protecting Medicaid from abuse and using abuse to discredit Medicaid itself.

In my view, the Trump administration’s campaigns against California and Minnesota continue that pattern. It is using real weaknesses within Medicaid to advance much broader political arguments: that Democratic states cannot be trusted, that public benefits naturally invite abuse, and that withholding funds is itself a form of reform.

The result will no doubt be that fewer low-income Americans will be able to get the healthcare they need.

Ben Zdencanovic, Assistant Professor of U.S. History, University of Cambridge

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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P.F. Chang’s Partners With Starlight Children’s Foundation for New “Spirit of the Zodiac” Giving Campaign

P.F. Chang’s launches Spirit of the Zodiac, a giving campaign supporting Starlight Children’s Foundation with Bao plush purchases and in-restaurant donations.

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P.F. Chang’s Launches Spirit of the Zodiac Campaign to Support Starlight Children’s Foundation
P.F. Chang’s and Starlight Children’s Foundation

P.F. Chang’s Launches Spirit of the Zodiac Campaign to Support Starlight Children’s Foundation

P.F. Chang’s is launching a new annual charitable initiative designed to bring comfort to children during hospital stays. The Scottsdale-based restaurant brand announced Spirit of the Zodiac, a giving program inspired by the Chinese zodiac, with its inaugural campaign—Year of the Fire Horse: Spirit of Strength—benefiting Starlight Children’s Foundation.

What the campaign supports

Starlight Children’s Foundation serves more than 800 children’s hospitals nationwide, providing programs such as toy deliveries, hospital gowns, gaming stations, and other experiences intended to help kids feel more comfortable, connected, and supported during medical care.

How guests can participate (Sept. 2–Sept. 30)

From September 2 through September 30, 2026, guests can purchase Bao, a limited-edition horse plushie, for $10 through dine-in transactions at participating P.F. Chang’s restaurants (while supplies last). For each Bao purchased, P.F. Chang’s will donate an identical Bao plushie to Starlight for distribution through its hospital network—up to 20,000 donated plushies.

Guests can also support the campaign by rounding up their checks or making a direct donation in restaurant. The overall effort aims to raise $500,000 to support Starlight’s work with children and families.

Bonus offer for donors

P.F. Chang’s says guests who purchase Bao or make an in-restaurant donation of $10 or more to Starlight will receive an offer for a complimentary appetizer with the purchase of an entrée on a future dine-in visit, valid through October 31, 2026 (restrictions apply; participating locations only).

A story component for families

The campaign also includes a storytelling element: Bao’s journey will be featured in a digital story and an original children’s book by author Jenny Liao and illustrator Adriane Tsai, expected to publish later this month.

What to watch for

P.F. Chang’s and Starlight plan to continue the partnership beyond September, including in-hospital catering and plush deliveries in early October.

For more information, visit www.pfchangs.com/offers/spirit-of-the-zodiac. To learn more about the partnership, visit starlight.org/pfchangs.

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