Natural organisms never had anything like source code. The genetic
code of an organism is more comparable to a binary (in fact,
quaternary) executable. Imagine a C compiler made by patching the
binary of hello.c a billion times in a genetic algorithm and you'll
see how hard this is to understand. -in an answer to a question (question 14).
That's a nifty insight that compares software and wetware!
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Planets in binaries and star clusters: session 7 of Extreme Solar Systems II
planets around binaries? in clusters? crazy stuff...
and we are live...
To do multiplication with your fingers in binary is very easy: it's just a mixture of addition and bit-shifting. The only real trick is memory: to multiply a×b, you need to remember the binary digits of both x and y, which can be a bit of a trick for 10 digit binary numbers.
There have been several interesting candidates for binary supermassive black holes found recently.
New data suggests one of the recently announced candidates is probably not a binary.