Re: Step 1 done
Hopefully these latest experiments will help clarify exactly what the hell gravity is and how it works.
Unfortunately the article at Quanta:
invites you to also read
which indicates in no uncertain terms that we are very unsure what spacetime actually is. Looks like some kind of patch cabling. Or a database. Or maybe God is just using a symbolic processor and only gives out numeric results if HE absolutely must. Or this universe is filled with ghosts. Who knows!!