How valid is the Block Universe theory?

[Herman Trivilino]

I naively thought that only quantum mechanics "needed" interpretations.

Rather than need I think it's an issue of desire. When we first encounter quantum theory we want to know the meaning of the main character $\Psi$. But is there a corresponding character in relativity theory that leaves us with the same kind of desire?

 

[Dale]

There is no math in the interpretation! All the math is in the theory. An interpretation is just the way you think about the math when you're doing it.

I disagree with this. I can write the position of a particle as $(x(t),y(t),z(t))$ or $(ct(\lambda),x(\lambda),y(\lambda),z(\lambda))$. This is just math, but the different expressions do naturally lend themselves to different interpretations. Without even labeling them, anyone who is familiar with both can tell which is idiomatic for block-universe and which is idiomatic for Lorentz aether.