Pedro Domingos

When we meet the aliens, they'll laugh at how we confused ourselves with curved space and quantum mechanics.

You think curved spacetime is avoidable? Seems unlikely, given the evidence.

If it's equivalent to Euclidean spacetime with a field.

I don't see any way you could defend this statement. Unless you ascribe the metric to this "field" you mentioned, in which case, what role does the Euclidean spacetime have? You're just moving the important parts of the curvature to a field, which would make the eqs harder