Hi Poseidon,
So are you leaving cryptocurrency / blockchain? What about machine learning? I think both are needed even for space travel.
Cryptocurrency is going to be the catalyst for next-generation stablecoins that will be available and accepted around the world and that will therefore remove the major drag on world wealth creation (which is fiat money). The world needs lots of money focused on space travel, amassed by either individuals or corporations; this is only possible in a world with universal private money — stablecoins competing against each other.
We would also need machine learning to overcome our own limits in terms of stamina, gravitationally influenced genetics, and limited lifespan.
There will be a plurality of fronts towards fantastic progress. One front may be more exciting than others, but in the “final analysis” many fronts are candidates for explosive growth. It boggles the mind. It’s going to be a brave new world out there.