There are various prediction markets out there right now which predict the rate of scientific progress; if you feel you know better than scientists about how quickly physics can advance, then you can go ahead RIGHT NOW and try to make money off of them.
Oh, you mean there's nothing about General or Special relativity up for grabs? It's almost as if they're incredibly robust theories and that we have quickly hit the realm of diminishing returns with respect to fundamental physics.
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You're messing with me! You're messing with me, aren't you!?
You're making fun of me, aren't you!? Aren't you!? You definitely are! I'll murder you!