but what is 'a lifetime?
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how i think about lifetimes.hope it helps!the article: https://smallcultfollowing.com/babysteps/blog/2018/04/27/an-alias-based-formulation-of-the-borrow-chec...

I think it’s actually quite a nice way to think about it. Thinking in terms of memory is much easier than thinking in terms of sections of code.