[snarks_when_bored]

We know how far we can see, but that's not the same as the boundary of all the inflationary space there could be.

Correct. Check out Linde's article (referenced in post #1). There he mentions that some inflation theories suggest that the radius of our cosmic bubble could be as large as 10^{1,000,000,000,000} centimeters—that's a 1 followed by a trillion zeros. By contrast, the part of our universe that we can currently see has a radius which is only about 10²⁶ centimeters, exceedingly miniscule by comparison.

[RussP]

"By contrast, the part of our universe that we can currently see has a radius which is only about 10^26 centimeters, exceedingly miniscule by comparison."

That would be precisely one yottameter. I kid you not.

I thought I'd never actually get a chance to use that word.