> We are not closer except theory is being proven.
I think by most definitions that means, "closer". Proof of concept is a huge deal.
POC doesn't mean it will be viable, even once they manage to make it net-positive. Let's say they get the lasers to be more efficient - there are other inefficiencies in the system further upstream you have to account for.
So, yes, there is a long way to go still, and there's no way to be sure it will be economically viable at the end of it. As an example - look at algae biofuel. That was a working example, not just proof of concept but working at scale - but it couldn't compete on price with petroleum when it was below 4-5 dollars or so.
We won't know until we get there. But the promise it holds (easily obtainable fuel, which won't blight the land if the plant fails) is worth the investment.
I think by most definitions that means, "closer". Proof of concept is a huge deal.
POC doesn't mean it will be viable, even once they manage to make it net-positive. Let's say they get the lasers to be more efficient - there are other inefficiencies in the system further upstream you have to account for.
So, yes, there is a long way to go still, and there's no way to be sure it will be economically viable at the end of it. As an example - look at algae biofuel. That was a working example, not just proof of concept but working at scale - but it couldn't compete on price with petroleum when it was below 4-5 dollars or so.
We won't know until we get there. But the promise it holds (easily obtainable fuel, which won't blight the land if the plant fails) is worth the investment.