Do you know those passwords you have to enter with the wierd wavy letters?

Question

there usually wavy and swirled, why do they make it like that, bots cant read it if its a picture, so why not make it simple

Answer 1

To answer the question "Why not make it simple?"

is because a sophisticated bot could read text in a picture if it was as simple as the text on this page, because it is still composed of predictable and static (non-changing) alphabet.

The words need to have some sort of randomization that is difficult to mechanically break down, but easy (or sometimes rather difficult) for the human brain to interpret.

Answer 2

There called Captchas.

There to help prevent spam from getting through wherever your going.But really,im not sure wuts the point of them much.