[tolmasky]

None of this seems particularly weird to me (except maybe the fact that the hexadecimals use binary exponents, but I can imagine why this would be way more useful than a decimal exponent)

Allowing unicode identifier names is a feature I've seen many people ask for, and doesn't seem like that big a deal. It must be frustrating using languages that don't support this feature to foreign speakers. Of course some characters can be in an identifier but not start it, this is true of most languages. You can't start variables with numbers in C.

I see no issue with allowing numbers in different bases. And of course the decimal would also be in that base. It would be weird if left of the decimal were in hex and right of the decimal were decimal.