It’s somewhat laughable to say he worked on alchemy and theology and that got no where, while we are discussing him and his accomplishments 400 years later. Alchemy is an esoteric inner journey. Ramanujan was by all accounts a one of a kind genius. Just from wiki ‘Ramanujan credited his substantial mathematical capacities to divinity, and said the mathematical knowledge he displayed was revealed to him by his family goddess Namagiri Thayer’. Belief systems can be very powerful or destructive to ones own accomplishments