Platform capitalism is when companies use technology, like apps and websites, to connect people who want to buy something with people who want to sell something. It's like a big playground where people can trade things.
For example, think of a lemonade stand. The kids who run the stand sell lemonade to their neighbors. With platform capitalism, instead of just selling their lemonade to their neighbors, they could use an app or website to sell it to many people in different neighborhoods.
Some companies use platform capitalism to make money by taking a percentage of the sales made on their platform. They can also use the data collected from people using the platform to make money by selling it to other companies.
The grown-ups who use platform capitalism can sell items they no longer need, like clothes or gadgets, on websites like eBay or Depop. They can also hire someone to do a job like cleaning their house, driving them somewhere, or fixing something in their home, using platforms like Handy or Uber.
So platform capitalism is a way for people to connect and trade things using technology, and sometimes the companies that provide the platforms make money from it.