People don't spend much time on those theories because they are inherently of little practical consequence. What includes that they are also not clearly testable.
Even physics has limits because our physical reality and approach has limits. Not everything can be a controlled experiment, especially things that are way beyond what our senses allow.
So in the end, everybody's theory holds 'almost' the same weight. We're all clueless, yay!
So in the end, everybody's theory holds 'almost' the same weight. We're all clueless, yay!