Alchemy

I bet they still construct it much faster than the constantly delayed Hinkley Point C in the UK

Yeah I think this is a big one for me.

I come back after a major patch or every 6 months and its all changed again! Which is good as it keeps it fresh, but the tutorial is very lacking on the changes.

This I agree with. Stellaris is very confusing starting out and such a huge learning curve the tutorial just doesn’t cover.