HAH! All you silly people who can only count to 10 with your fingers! I can count from zero to 1023 on my FINGERS!

It's a little tricky at first but it's not as hard as it looks.

0000000000 zero

1000000000 one

0100000000 two

1100000000 three

0010000000 four (watch out for this one, it'd be your left middle finger XD)

1010000000 five

0110000000 six

1110000000 seven

0001000000 eight

1001000000 nine

0101000000 ten

1101000000 eleven

0011000000 twelve

1011000000 thirteen

0111000000 fourteen

1111000000 fifteen

0000100000 sixteen

And so on and so forth. If your finger is up it's one, if your finger is down, it's zero. With this system you can count up to two to the power of however many fingers you have, minus one: for most of you I hope that's ten fingers, making 1024 - 1 which is 1023. It's still 1024 permutations, but you can only go up to 1023 because zero counts as one of them.

Goes like this:

Left thumb: 1

Left index finger: 2

Left middle finger: 4

Left ring finger: 8

Left pinky: 16

Right thumb: 32

Right index finger: 64

Right middle finger: 128

Right ring finger: 256

Right pinky: 512

So if you wanted to display, like, 342 to pick some arbitrary number, you split it up by subtracting the greatest power of two possible from it until you get down to the end.

342 - 256 = 86

86 - 64 = 22

22 - 16 = 6

6 - 4 = 2

So 342 = 256 + 64 + 16 + 4 + 2

That's:

0110101010

Meaning your left index, middle, and pinky fingers will be up, and your right index and ring fingers would be up.

Of course this is just me rambling on since any proper geek already knows how to count in binary but I only just figured it out.

It's so much fun though. I usually mess up after 64 though and lose track XD.