4 key ways AI changed the Big Four in 2025
Deloitte, KPMG, PwC, and EY make up the Big Four professional services firms. Emanuele Cremaschi//Getty Images, Craig T Fruchtman/Getty Images, Joan Cros/NurPhoto,, Joan Cros/NurPhoto via Getty Images...
Deloitte, KPMG, PwC, and EY make up the Big Four professional services firms. Emanuele Cremaschi//Getty Images, Craig T Fruchtman/Getty Images, Joan Cros/NurPhoto,, Joan Cros/NurPhoto via Getty Images...
Russia's T-14 tanks are considered its best, but they don't seem to have been in Ukraine. Sean Gallup/Getty Images The British military expected to see more "prestige" Russian equipment in Ukr...
Garry Tan is a top seed investor. Courtesy Y Combinator founders seized the AI boom in 2025, with increasingly younger teams securing millions in seed funding. Founders launched companies ranging from...
Thieves broke into the vault of one branch of Germany's Sparkasse Gelsenkirchen. Christoph Reichwein/picture alliance via Getty Images Thieves stole valuables worth at least $36 million from a German ...
Each box contains four of Trader Joe's Sublime ice cream sandwiches. Emily Bond I love shopping at H-E-B and Central Market, but a Trader Joe's was recently built in my area. So, I decided to stop by ...
Leading AI companies are competing for the world's top talent, doling out huge pay packages. They are also paying top dollar for undiscovered talent. iStock; Rebecca Zisser/BI AI giants like OpenAI, A...
Artist Ana Fedina is the illustrator behind "The Armory of Heroes," a 216-page full-color compendium of weapons and character art released by Critical Role. Insight Editions Ana Fedina has mad...
A medium-sized NIWA cabin made by Koto Studio. Trent Bell UK-based architecture firm Koto makes cabins that are available in the US for the first time. The Niwa collection of minimalist tiny homes com...
Business Insider's reporter spent three hours in Delta's first class cabin while flying from NYC to West Palm Beach, Florida. Joey Hadden/Business Insider I flew first class with Delta for the first t...
Michael Burry, the investor of "The Big Short" fame. Astrid Stawiarz/Getty Images Michael Burry touted health insurer Molina as a winning stock pick on his Substack. The "Big Short" in...
Carla Caputo says she always follows a few key rules when in clients' homes. Citigroup Carla Caputo helps coordinate art purchases and collections for Citi's high-net-worth clients. She always takes a...
Attorney Alex Spiro wrote to California Gov. Gavin Newsom saying several of his clients would relocate if a billionaire tax were implemented. Ramsay de Give-Pool/Getty Images; Michael M. Santiago/Gett...
Thailand is one of the countries with an expected tourist tax increase in 2026. Planet One Images/Universal Images Group via Getty Images Several destinations plan to raise or introduce tourism taxes ...
Frederick Baba, a trader at Jane Street and former Goldman Sachs partner. Courtesy of Goldman Sachs Former Goldman partner Fred Baba shared the goodbye note he sent colleagues. He left Goldman in 2023...
The time it takes to save for a home down payment fell to about seven years in 2025. TrongNguyen/Getty Images The time to save for a typical home down payment has dropped to seven years in 2025. While...
Paste in my prompt to Claude Code with an embedded API key for accessing my public readonly SQL+vector database, and you have a state-of-the-art research tool over Hacker News, arXiv, LessWrong, and d...
A SpaceX Falcon 9 rocket blasts off carrying Starlink satellites into orbit. Paul Hennessy/SOPA Images/LightRocket via Getty Images SpaceX is moving over 4,000 Starlink satellites to a lower orbit. An...
Commuters wait for metro in Washington DC. John Greim/LightRocket via Getty Images There are steps you can take in the final days of 2025 to prepare for a strong year ahead at work. They include updat...
The author (right) poses with her friends while attending a Backstreet Boys concert at the Sphere in Vegas. Courtesy of Anna Rahmanan In August, I took a 48-hour break from motherhood to see the Backs...
Alby Churven's Y Combinator application went viral on X. Alby Churven Alby Churven founded Clovr, a front-end vibecoding startup. He's 14 years old. Churven told Business Insider that his age gave him...