Yep you were definitely born that thick. You are an embarrassment, old man.
''“Realize” is the dominant spelling in the US, and “realise” in the UK. Spelling checkers often try to enforce these patterns by labeling the other spelling as an error; but it is good to know that most dictionaries list these as acceptable spelling variants."
Spelling VARIANTS; ergo, both are acceptable.
I have passed my English exams so I know more than you do. Even a fool like you should know better.
Ban me now.