quite better but my confusion is why would it be like a normal distribution like isn't each key represented by a single value in the lookup table it's a constant right so why would it have a distribution um so I'm not really sure what like if you're given a string you just count right and then out of the count you that's a constant let's say it's all just restrict to a through Z then for each of the character you have a basically the probability occurs in this stream and that's a constant value so why would that have a distribution so