I don't understand this tagline used in relation to the so-called 'Longevity Escape Velocity'. If two people are alive for it and both regularly receive the latest life-extension treatments, wouldn't the older one get to 1000 first?
It would make sense if this 'Escape Velocity' was supposed to represent something very far off, but those who use this tagline generally claim it to be possible in the next few decades.