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OK, let's make this really easy.
Let's say we have 2^3 (2 to the power of 3)
that's 8, right?
And 2^2 is 4 right?
2^1 is 2 right?
So you can see that we're halving each number as we go down in powers (8, 4, 2)
Go down 1 more power. What's half of 2? 1. So 2^0 = 1
Another example:
3^3 = 27
3^2 = 9
3^1 = 3
3^0 = 1
because
27/3 = 9
9/3 = 3
3/3 = 1
No matter what number you pick, when you work it down in powers you always end up dividing the number by itself, which is 1
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