Grant Sanderson: evaluation

Transcript context

…Oh yeah. It's almost like asking — how is the concept of the alphabet useful? It comes up so often. For example, how many lights do I set up for this interview? In what ways? Is that the concept of an abstract number though? Because it's like two people, two lights. One to one correspondence. Did you leverage the abstraction of two as an object which is simultaneously a rational and a real and an integer. Is in the context of a group that has additive structure but also multiplicative. It was just there's light for you light for me. I'm pretty sure the abstract idea of a number is important for all of us but I don't think it's immediately obvious. It's more that it shapes the way we think, I'm not sure if it actually changes the way we live. Assuming you don't work in STEM right where you literally are using it all the time. Yeah, I'm trying to go through my day and think through where am I using them? There's the obvious stuff like the commerce examples you mentioned where you go to a restaurant and you're figuring out what to pay or what to tip but that seems a very particular example. Do I really use numbers that infrequently? I don't know.…

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