There are physicists working on the problem, yes: https://en.wikipedia.org/wiki/Alternatives_to_general_relativity#Modern_theories_1980s_to_present https://en.

There are physicists working on the problem, yes: https://en.wikipedia.org/wiki/Alternatives_to_general_relativity#Modern_theories_1980s_to_present https://en.wikipedia.org/wiki/Alternatives_to_general_relati...