Here’s a video about it: https://m.youtube.com/watch?v=OjdE-Q3yDYQ&pp=ygUvdHJhdmVsIGF...
For example there is ~4 light years of empty space between us and our closest star.
And if you come upon a solar system but don’t hit a planet you’d probably get ejected into empty space.
And even if you did hit a planet, you could end up on water, land, lava, etc., so I guess you’d have to account for all possibilities, plus keeping your biological cargo alive during the extremely long journey.
So it would have to be a heavily calculated trajectory and heavily planned cargo to find much success.
The capsules will go around the galaxy, travelling through or oscillating above and below the galactic plane just like other stars.
Bonus 1: Make your capsules charged so they're guided by galactic magnetic field lines into star-forming nebula where a high density of stars are created letting them mix into protoplanetary disks.
Bonus 2: Just keep spewing out more capsules to increase mixing rates.
It's so much easier to build and train AI then migrate our "humanity" into machines and just go from there to the Tannhäuser Gate and beyond.
When I was a kid, my dad, a very spiritual guy, after tucking me in, revealed to me: "Son, humans can already travel faster than light". My young and inquisitive scientific self said "What?? How?!?!" And he goes: "Just close your eyes and imagine yourself on Mars. It's instantaneous."
Plus - why only one source of these capsules? Does only one mold cell in a colony generate a spore? Drake suggests that perhaps many will have done this same thing.
Star Trek, Halo, Doctor Who, Stargate, Red Dwarf, Spore, Ben 10, etc.