>>10898506Few key tech needs to be invented for colonizing our nearest stars.
>Tiny ships powered by lasers that can do 10-20% speed of light.This is the key transport thats floating around. Requires the tiny ship + a laser with gigawatts of power from earth's power stations.
Money is the main issue with the later. Tiny ship that can handle the gigawatts of laser is however bit of an engineering challenge.
>Self replicating nanobot constructorsWe can already make nanobots, but we need a smarter nanobot that can be solar/battery/etc powered and work with swarms. Doable, but takes another 10-20 years of research. These machines will land on planets across the galaxies and do the ground work of building facilities/harvesting materials/growing food and also building satellite dish for communications.
>Growing human from cells/sperm and inside a vat tankAnother key tech that's stopped by ethics.
>Internet between the starsCould be build-able by the nanobot constructors.
From my mind, these are all within 50 years of being invented/created with enough drive/will. Then its a matter of sending human cells/sperms and creating a culture to grow batches of new humans on new planets across the star systems/galaxies/universe.
