I should have put that my understanding was old. I'm happy to see things have come even farther along than I would have expected. But I honestly don't get why

I should have put that my understanding was old. I'm happy to see things have come even farther along than I would have expected. But I honestly don't get why this didn't happen early 2000s. The specific thing that always baffled me was how the PSPs couldn't interact with the Playstation at the time. Heck, after the first PSP, I don't know why the next Playstation couldn't take those disks in to let you play on your TV. Why build up a completely separate ecosystem? I see they are moving away from that now, with the PS5 being able to do PS4 games. That is good to see.