Recently there's been some talk on the Internet that scientists have figured out that, due to mass-specific resting metabolic rate and mass-specific energy per lifespan, the average animal has +- a billion heartbeats until the clock stops. Little scampering critters that panic a lot (mice, rabbits) have quick heartbeats and die soon. Big things that are kind of chill and not terribly reactionary have slow heartbeats and live for a long time (tortoises, whales).
Similarly, I'm convinced (I have no empirical or anecdotal evidence) that my keyboard has a finite number of keystrokes in its serviceable life and I'd hate to see it die on an electric Smart "truck" concept with a top speed of 75 mph, an electric bicycle as a backup plan and quoted 0-37 mph time of 5 seconds.
More pics after the jump.
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