Relativity doesn’t say space has to be curved; that’s just an interpretation. You could interpret relativity only as curved paths in flat space due to gravity,

Relativity doesn’t say space has to be curved; that’s just an interpretation. You could interpret relativity only as curved paths in flat space due to gravity, instead of flat paths in curved space. The math is much uglier, though, so in a metaphysical sense, Tesla was wrong. Einstein famously said “god does not play dice” regarding quantum mechanics, and “not more open-minded than Einstein” isn’t much of an insult.