Yeah, hard is clearly an understatement. However, if it were critical to the human race, and the top 20 economies put a trillion dollars and some of their best scientists behind it starting today, there is absolutely zero question that a ship capable of that could be built and launched within 20 or 30 years.<p>Alternatively, Bezos will probably have $100 billion to play with in the next 12 to 24 months or so ($61 billion today, most projections have Amazon climbing quite a bit higher yet, new price targets have it at $1,000 per share; whether it takes a year or six years, it&#x27;ll very likely get there). He just sold off $671 million worth of shares the other day, I&#x27;d expect his sales will continue as the price climbs. So maybe he&#x27;ll fund it by himself in the coming two decades.