Why Egypt Is Building a New Capital City

I'm surprised by the breadth of info about a place in Egypt on a non-Arab YouTube channel. This is an impressive video and I've learned a few things about the New Capital that I didn't know before (I've been there twice).
It's very hard to be not super skeptical about everything they're doing there, given our history in ruining every good project in evert way possible. But so far, silly octagon and dick-measuring buildings aside, I'm quite hopeful for this new capital.
Regarding transport, they are investing a lot in building public transport between the old city and the new capital, and I really like this because as someone who live in New Cairo (which is in between them) I'm finally going to have good public transport running close to my home!
I have no idea how they'll manage public transport inside the new capital though.
I also hope they turn Tahrir and the area around it into a pedestrian-only place, we already have a big multi-floor underground parking space at Tahrir (and another nearby), so people should be able to park there then walk. I might actually start enjoying this central part of the old city.