Fascinating …
In the particular universe of the radio-capable beings (RCBs), their species lifespan is finite, as alas, their Sun will wipe them out shortly … they can't wait !
(There are many contradictions to this one, I reckon .. )
I think I'll live in a finite universe from now on … there are all these limitations … I mean, they have evidence that they live in a flat, infinite universe (no wrap-arounds, eh?) …
Also, the RCBs have noticed isotropic CMBR, which demonstrates causal contact at the very beginning of its own epoch and spacetime chunk !
.. Some RCB dude proposed something called 'inflation' to account for it !
Cheers