Spoiler :
I could have finished all SS parts by t265, but Russia was just too fast. Maybe I should have bribed her to DoW other guys, but I did not have enough cash to do that... I bribed her to DoW Sweden but I guess she was on runaway for a long time already.
Not sure if I could have changed something, but definitely should have paid more attention. I haven't lost to AI with sci victory for a long time so I underestimated Russia.
Due to the long war with Zulu, my pop could not grow very well... and I could not get any wonder except petra and hubble (even no oracle or HS). My rationalism open timing and secularism timing was really slow and observatory was late too. I guess they ended up late science.
Signed tons of RAs (I think with 6 civs), but the problem was AIs signed lots of RAs too and Russia had Porc Tower... maybe I should have rushed it with faith GE (not sure it was possible at that time)
One thing I found particularly useful was that now they show how much science you will get from the bulbing - and it seems that saving GS still works, as all of them gave the same amount if I bulbed at the same turn.