>>10852660>>No credible space programESA, NASA, Russians. There is development going on, but the interest in human space exploration has declines because it is so expensive and cumbersome, and the reward is miniscule. There absolutely needs to be another rush in engine technology, right now you are suggesting to cross the open ocean using a raft.
>>No colonies on the MoonWhat would the practical use be? Much easier to get resources out of earth, and much less dangerous.
>>No trip to MarsSame as with the last two points.
>>No humanity cancer freeWe can't even have humanity hunger-free, or homeless-free, which is the next thing you'd expect before cancer-free.
>>No AIAI is here and it is working fine - see chess. Practical applications are up to you to develop for whatever task you need. Or, hire the devs - but you'll need to pay them, too!
>>No solarpunkNuclear beats solar right now.