Swimming in the Deep End

Because we’ve got a lot to cover in a small space, I’m going to try to show you things first, maybe even use them first, and then explain them in detail a little later. Sometimes that can feel like you’ve been thrown into the deep end of the pool. When you see something that doesn’t make sense yet, don’t worry about it. Just let it wash over you; the explanation will be along shortly.

In many cases, you can use something successfully even if you don’t really understand how it all works. I can turn a desk lamp on and use it without understanding how electricity is generated. I could even build my own desk lamp without understanding how to build a big power-station generator. I just need to know how my part fits in. ...

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