Reversing a list by slicing

Question

I learned that using [::-1] reverses a list.

But if I am not wrong, the first argument in [ : : ] is by default 0, i.e. start of list and second argument is by default end of list i.e., -1.

So shouldn't [::-1] just return the first element followed by the last?

Answer 1

-1 is the step i.e [start:end:step]
[::-1] means
From the first argument in the list to the last with a step of -1.