Matt Kirshen

Does this make me a knave?

I don't know.

Squire, I'll take that.

I have to put your mortarboard and your gown on you and just send you off to battle?

So yeah, there's some great questions as always sent in by your Patreon subscribers.

So Hannah Cantley from the City of Roses, Portland, Oregon says, could the effects of dark energy on space-time geometry potentially arising from entropic forces complicate our ability to measure distances to distant galaxies, especially considering that their apparent recession speeds may exceed the speed of light due to the expansion of space and this might necessitate new models and techniques to account for these influences.

Alyssa says, there is still a gap between how fast the universe is expanding based on nearby measurements versus predictions from the early universe.

Based on your work, do you think this means we're missing something in how we measure it?

Or could it mean our current model of the universe needs to change?

And Alyssa also says, thank you for being a badass woman of science.

All right.

Jamie and Sabrina from Transylvania ask, in the future, when we were all zipping around the universe on starships, how will we keep track of the expansion of the universe?

How will we find our way home when home isn't where we left it?

Well, while we are talking about distances, I think we have time to squeeze in this question, hopefully, from Chris from Marlborough, New Jersey.

It says, dearest Dr. Tyson, Dr. Friedman, and any esteemed guests, I'm going to count myself as esteemed in that case.

Chris asks, would the way you conduct your work change if we found out definitively our universe is infinite or finite in size?

Also, which options do you find more plausible?

Thank you very much, both of you, for your stewardship of cosmic curiosity.

Ooh, I love that sentence.

Beautiful.