Just won turn 337 science victory on Diety, my first win on that difficulty. Only founded 3 cities, lost one around turn 300, tall science play is more than viable
This was an incredible game, alot went wrong, inlcuding being nuked. I was steadily losing ground to the Autocratic alliance of Ottomans, Polynesia and Germany. At the end the other free nations had already collapsed, only my 2 cities remained, with capital taking hits. I continued playing after launching, and my capital fell in 3 turns.
Early on I fought an incredible war against the huns, going from barely surviving to burning a city down. There is zero way China would have won this game, India's abilities came in clutch so many times. The Pantheon is incredible, Naga Malla let me build agribusiness while keeping my elite skirmishers promotions. The extra pressure spread my religion like wildfire, and of course the growth was absurd. I build the food corporation since it was my only option, at the end my capital grew every turn for. Despite getting nuked was back to 98 at the end of the game. Cooperation gave so many yields its disgusting.
One move I made, which I'm not sure if it was correct, was I killed the Huns after they lost their capital. Their score was crap, so eliminating them brought my yield from World Science Initiative from 10% to 24%. It did take a reasonable investment though
The potential cultural snowball of God of All is incredible, especially with culture ruins, and with India you can still found a religion quickly despite your pantheon maxing out at 2 faith. For this build I picked 2 Aesthetics, then 4 Piety then Rationalism. After taking 5 freedom policies, I finished Piety, got 2 more Aesthetics, and then got spaceship procurements. With God of All, you don't need Holy Law (I picked Theocratic Rule and was able to maintain WLTKD almost all game). Built Masoleum of Hali, Gardens, Oracle, Hagia Sophia (to enhance cause my faith was crap), Leaning Tower, Porcelain Tower, Himeji Castle (now has a free GS), Empire State, Stat of Lib, Hubble and CERN.
With that said my faith output was absolute crap for a long time, my per turn never got above 160. So a God of Wisdom approach is definitely viable (I just worry about early culture)