Every time you think computers are too unwieldy, remember where we have come from
"Today, we have Fitbit, a tiny wearable computer that instantly analyzes your physical activity from inside a band slipped over your wrist. But in 1959, a state-of-the-art physical activity tracker was a little different.
It weighed about 2,000 pounds (4,000 with the power supply). It asked you to input all data by hand (through a punch card reader). And it needed several hours to spit out the results (if you were lucky)."
From Wired.com
Think your phone is too bulky? The 1950's Fitbit (or Climbax).
And just as importantly, if we've gone this far in 65-odd years, where will we be in another 65?