Here, take a look.

[ He will just show him, it's not terribly close anyway, it doesn't need to be for this blanket. It's really hard to mess something up, Senku is not worried. ]

Knowing the theories only got me so far. Took more than a day to get fire again, then I had to worry about food, which took a couple more.

[ His tone is light, it might sound flippant as long as one didn't think too much about all of that. ]