I totally agree; the inability to experimentally falsify most quantum gravity theories is indeed a huge pain that has haunted theoretical physics for over 80 ye

I totally agree; the inability to experimentally falsify most quantum gravity theories is indeed a huge pain that has haunted theoretical physics for over 80 years. But here's a thought: what if a completely new approach emerged, one that didn't start with 11-dimensional strings, M-theory, or quantizing General Relativity directly? after all, 100% quantum gravity candidates still assume the standard 4-dimensional spacetime as described by GR +smt extra, then attempt to quantize it! But imagine if we had a fundamental theory from which gravity and GR themselves emerged naturally and effortlessly—making General Relativity merely an emergent phenomenon of something "much simpler" Wouldn't a theory like that be worth more than 50 cents?