Mankind will either spread further or die, this is binary. How much spread we can achieve or how much is even possible (ie due to limit of speed of light) is another topic, but if we want even with c being the absolute limit we can colonize milky way in maybe 100 million years if we want... in theory.

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mr_mitm 14 hours ago | parent [-]

But for what? The beings that will have populated the milky way in 100 millionen years will not be humans anymore due to evolution. Some planets will be thousands of light years apart, meaningful communication will be impossible. Species will diverge. Why should I care about such a future?

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kakacik 12 hours ago | parent [-]

Some people, both men and women, like to see their specific genes propagating and thriving. Built in by evolution definitely. Most parents do understand this.

	▲	SketchySeaBeast 12 hours ago \| parent [-]
		I get it, it's an irrational desire, but with the timespans we're talking the evolutionary distance is greater than that between us and whatever fuzzy things was scurrying under the feet of the T-Rex.