Life extension escape velocity. The point at which medical developments increase one's actuarial life expectancy faster than one year per year.

That is, if medical technology advances enough that you're expected death date keeps getting pushed back faster than you're aging.
I intend to reach LEEV by exercising and eating lots of veggies. At least until I can get myself a spiffy new cyborg body.
by March 7, 2023
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