Earlier quoted context omitted.
That's a straw man. The problem is tons of research and development won't happen without the state, but the main avenue the state funds development (as opposed to research) is the military. There are many possible futures, and the world is highly non-ergodic, so there is a real cost here to biasing the development of technology in this matter. "Opportunity cost" doesn't do the concept justice. We don't have to stop m…
Well could you point to the downside of this? From teflon to internet and countless other things you use every day that came out of DARPA and other def. research, what would have changed if it was funded via different model?
But each of those things has to be contorted to have a military purpose, even if the main benefit we get in the end is not military-related.
We should be able to research those things just because they are good, without laundering their best purpose. And we should open the door to other things that seem just as promising, but are harder to so launder.
The fact I can't tell you the counterfactual is kind of the point — most of us have no idea about the world-changing effects of the development not persued might be, just as the average person on the 1970s did not envision today's internet. The world of possible futures is simply too open ended.