It had me wonder what the opposite would be...
Imagine we forged a formula for 1000+ year projects. They would require more money periodically and the availability of new funds would have a strong influance on the value of previous cash injections. One could buy the "failing" project cheap then simply do the new cash injection yourself OR in case of success one could obtain the shares for less than their value.
We have so many papper driven games like this already. I see no reason why this one wouldnt work.
The fun questuon to ask...
What could we build that would take 1000 years?