I dont see either....

Thanks, I saw the condition. Could you give a and b for a ray that returns to 0.0? one example, if I could untwist a sequence

I don't see how it's even physically possible for the light to terminate at (0,0). Isn't it always reflecting "upwards" at an angle of 45 degrees? How would it ever go back down to the point (0, 0)?

true for either of those
false for (0,max_y) or max_x,0)

Kind of confusing clarification on what output should be. I should be returning if it is (0, 0) vs if it is (max_x, max_y) OR should I be returning True if it is either of those?

Ranks can't be changed though, and it's not the author's decision.

This shouldn't be 7 kyu. Look at this problem: https://www.codewars.com/kata/5841f680c5c9b092950001ae/train/python

You're telling me these are the same difficulty rating? Come on now...