In the English language what is the logic behind "I" being capitalised ?

Nice long article on the topic here.

Just a guess but I’d say it’s because “I” can start off sentences pretty often and it might have just caught on. That and it just looks better capitalized. Or maybe that’s just because I was taught that I’s are supposed to be capitalized. And finally, “capitalize” in itself provides sound reasoning. Get it? Capital-I’s? boo doop chhh (those are drum noises)

I think it(I), is substitution for your name which would also be capitalized. i often neglect to do it out of laziness.

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Because, just like ‘Jesus’ is capitalized, or a name is capitalized, you are referring to yourself- therefore ‘I’ is your name at that moment in time in the context of how you are writing.

When you say ‘My Grandmother’ but don’t want to include her name, it is capitalized because it is taking place of her name. or ‘He’ if you don’t want to say their name.

That’s how I see it, at least. Who knows if it is true. Good question (:

It started because people think more highly of themselves, than others. So they capitalize I, because they are referring to themselves.

Funny, in German ich (I) is not capitalized while Du (you) in a letter is capitalized.

@mattbrowne I like that