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xkcd #2932: Driving PSA
(imgs.xkcd.com)
Alt text:
This PSA brought to you by several would-be assassins who tried to wave me in front of speeding cars in the last month and who will have to try harder next time.
There is an on-ramp for the highway near me that's pretty long. It's long because it's a very straight fast-moving section of highway. In other words, the on-ramp is designed to give you adequate space to get up to highway speed. The number of people who immediately merge into the first lane without getting up to speed is too damn high.