AI Research
Musk’s X appoints ‘king of virality’ in bid to boost growth
Elon Musk has appointed a product developer responsible for several successful youth-focused social media apps to a senior role at X.
Nikita Bier has been made X’s head of product three years after publicly suggesting on the platform – then known as Twitter – that it should employ him.
“I’ve officially posted my way to the top,” he wrote in a post on X announcing the role.
X has been on a rollercoaster ride since it was bought by the world’s richest man for $44bn (£38.1bn) in October 2022.
It has faced problems with advertisers, seen high profile users quit and wrestled with the emergence of new rivals Bluesky and Threads.
However, experts say Mr Bier’s appointment could boost its prospects with a key demographic.
Drew Benvie, chief executive of social media consultancy Battenhall, said Mr Bier’s experience in developing features that engage younger users, like anonymous polling, makes him hopeful his arrival could bring some “X-factor” to the platform.
“Getting that knack for what consumers want, and Gen Z users in particular, is precisely what X needs right now to turn things around, as all is not lost for the once-greatest social network,” he told the BBC.
Successful – and controversial
A former student at the University of California, Berkeley, Mr Bier grew to prominence after launching a slew of anonymous apps aimed at teens.
These included tbh (an acronym for “to be honest”), a platform allowing US high school students to participate in anonymous, friendly polls. It was acquired by Meta in 2017.
In 2023, his compliments-focused app Gas was bought by Discord, after it climbed up US app download charts.
Venture capital firm Lightspeed referred to Mr Bier as the “king of virality” when he joined them as an advisor last year.
But the means by which Bier’s now defunct app tbh reportedly targeted younger users were also somewhat controversial.
Buzzfeed reported in 2018 that it had obtained a memo in which tbh’s founders told Facebook colleagues, post-acquisition, of “a psychological trick” that could be used to amass teen sign-ups.
It included scouring Instagram for high school students’ accounts, it said.
In his post on X Mr Bier described his new employer as “the most important social network in the world”.
“While I already spend every waking hour on this app, I’ll now be spending that time helping others unlock that same value,” he said.
This would include “leveraging the power” of X’s generative AI chatbot Grok to develop “hyper-relevant timelines,” he added.
X’s usage and popularity has fluctuated under Musk’s leadership of the platform.
He said in March that the platform had more than 600m monthly active users.
But according to Pew Research Centre findings published in December, 17% of US said they use X – down from 23% in 2022 and 33% a decade ago.
Talent tensions
The appointment of Mr Bier at X comes at a time when tech firms are jostling for top staff, namely sought-after engineers, to spearhead their AI development.
Mark Zuckerberg announced a new “superintelligence” team at Meta on Monday, after reports it had targeted OpenAI staff with $100m-plus compensation offers.
It includes Nat Friedman, former boss of software development platform GitHub, Alexandr Wang of data annotation firm Scale AI and co-creators of OpenAI’s models.
One OpenAI executive likened the company’s approach to its staff with huge compensation offers to a break-in, according to an internal memo seen by Wired.
Mark Chen, its chief research officer, reportedly said he was working with OpenAI boss Sam Altman on “creative ways to recognise and reward top talent”.
The BBC has asked OpenAI for comment.
AI Research
The new frontier of medical malpractice
Although the beginnings of modern artificial intelligence (AI) can be traced
as far back as 1956, modern generative AI, the most famous example of which is
arguably ChatGPT, only began emerging in 2019. For better or worse, the steady
rise of generative AI has increasingly impacted the medical field. At this time, AI has begun to advance in a way that creates
potential liability…
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Radiomics-Based Artificial Intelligence and Machine Learning Approach for the Diagnosis and Prognosis of Idiopathic Pulmonary Fibrosis: A Systematic Review – Cureus
AI Research
A Real-Time Look at How AI Is Reshaping Work : Information Sciences Institute
Artificial intelligence may take over some tasks and transform others, but one thing is certain: it’s reshaping the job market. Researchers at USC’s Information Sciences Institute (ISI) analyzed LinkedIn job postings and AI-related patent filings to measure which jobs are most exposed, and where those changes are happening first.
The project was led by ISI research assistant Eun Cheol Choi, working with students in a graduate-level USC Annenberg data science course taught by USC Viterbi Research Assistant Professor Luca Luceri. The team developed an “AI exposure” score to measure how closely each role is tied to current AI technologies. A high score suggests the job may be affected by automation, new tools, or shifts in how the work is done.
Which Industries Are Most Exposed to AI?
To understand how exposure shifted with new waves of innovation, the researchers compared patent data from before and after a major turning point. “We split the patent dataset into two parts, pre- and post-ChatGPT release, to see how job exposure scores changed in relation to fresh innovations,” Choi said. Released in late 2022, ChatGPT triggered a surge in generative AI development, investment, and patent filings.
Jobs in wholesale trade, transportation and warehousing, information, and manufacturing topped the list in both periods. Retail also showed high exposure early on, while healthcare and social assistance rose sharply after ChatGPT, likely due to new AI tools aimed at diagnostics, medical records, and clinical decision-making.
In contrast, education and real estate consistently showed low exposure, suggesting they are, at least for now, less likely to be reshaped by current AI technologies.
AI’s Reach Depends on the Role
AI exposure doesn’t just vary by industry, it also depends on the specific type of work. Jobs like software engineer and data scientist scored highest, since they involve building or deploying AI systems. Roles in manufacturing and repair, such as maintenance technician, also showed elevated exposure due to increased use of AI in automation and diagnostics.
At the other end of the spectrum, jobs like tax accountant, HR coordinator, and paralegal showed low exposure. They center on work that’s harder for AI to automate: nuanced reasoning, domain expertise, or dealing with people.
AI Exposure and Salary Don’t Always Move Together
The study also examined how AI exposure relates to pay. In general, jobs with higher exposure to current AI technologies were associated with higher salaries, likely reflecting the demand for new AI skills. That trend was strongest in the information sector, where software and data-related roles were both highly exposed and well compensated.
But in sectors like wholesale trade and transportation and warehousing, the opposite was true. Jobs with higher exposure in these industries tended to offer lower salaries, especially at the highest exposure levels. The researchers suggest this may signal the early effects of automation, where AI is starting to replace workers instead of augmenting them.
“In some industries, there may be synergy between workers and AI,” said Choi. “In others, it may point to competition or replacement.”
From Class Project to Ongoing Research
The contrast between industries where AI complements workers and those where it may replace them is something the team plans to investigate further. They hope to build on their framework by distinguishing between different types of impact — automation versus augmentation — and by tracking the emergence of new job categories driven by AI. “This kind of framework is exciting,” said Choi, “because it lets us capture those signals in real time.”
Luceri emphasized the value of hands-on research in the classroom: “It’s important to give students the chance to work on relevant and impactful problems where they can apply the theoretical tools they’ve learned to real-world data and questions,” he said. The paper, Mapping Labor Market Vulnerability in the Age of AI: Evidence from Job Postings and Patent Data, was co-authored by students Qingyu Cao, Qi Guan, Shengzhu Peng, and Po-Yuan Chen, and was presented at the 2025 International AAAI Conference on Web and Social Media (ICWSM), held June 23-26 in Copenhagen, Denmark.
Published on July 7th, 2025
Last updated on July 7th, 2025
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