What is the purpose of null?

Question

I am in a compilers class and we are tasked with creating our own language, from scratch. Currently our dilemma is whether to include a \'null\' type or not. What purpose do

Answer 1

Null is not the problem - everyone treating, and interpreting null differently is the problem.

I like null. If there was no null, null would only be replaced with some other way for the code to say "I have no clue, dude!" (which some would write "I have no clue, man!", or "I have not a clue, old bean!" etc. and so, we'd have the exact same problems again).

I generalize, I know.