[ Toph doesn't care in the slightest. ] It's everyone else that's uncomfortable with me being blind, not me, [ she answers bluntly, wholesale rejecting the idea that she needs to be treated carefully about her disability. ] I can sense a lot if someone's in contact with the ground. In order to fight, I need to be able to tell when someone's shifting their weight, even just a little, so I can predict their actions.

I could tell Spock wasn't human right away because his heart rate is so fast, and his breathing runs a little different. I didn't really think about that meaning space travel. That sounds totally crazy... but also really cool.

[ Toph is utterly frank that she's out of her depth on all matters space, but she also doesn't sound bothered by it. Of all the weird things she's run into here, this one is pretty tame. It's not beyond belief to her to imagine space travel when society is already industrializing and flight is already pretty normal. ]