Why technology astounds me

I used to play Sleuth off of a disk that looked like this:

Now, I just got a flash memory card for a new touch-screen media player. This–

–can hold as much as over 86,000 of those floppy disks. Eighty-six thousand.

The micro SD card holds 32,000,000,000 bytes, while a typical 5.25″ floppy held around 368,000. This means the floppy disk holds about 13 kB per square inch of overall disk size, while this micro SD card holds about 123 million kB per square inch. That’s a ratio of 9.5 million to one!

(Caveat: non sequitur follows. 😉 ) So why, again, don’t we have humans on Mars by now?

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