I don't speak German. Generation 3+ only came into use in the West in the last 5-10 years. China has over 150 planned for a reason, watch the link I already provided. They are fundamentally built to avoid the accidents of the past. The standards set by the Chinese on this meet Western standards, hell, they are selling the tech to us.
GOOD. BUILD MORE. The newer generations of nuclear plants can recycle their own waste and are basically meltdown proof. It's a no brainer. Shit is literally alchemy magic.
LPT: add a lemon peel and honey to any coffee incl instant and it will taste gourmet. Add condensed milk if you're feeling fancy. This is what I do for fieldwork coffee. I learned this off a good Brazilian friend, never went back. I always do at least the peel now, it neutralises the acids.
2-4 hours. For teaching you have about 15 mins to reach your students, for reference. Apply this to any presentation you give lol. Anyone that says they're doing that much, take with a tablespoon of salt.
You obviously haven't read these or watched that video as that's covered. It's literally physics.