Hacker News Reader

Do you have a scientific breakthrough in cheap/fast/efficient water desalination and purification?

No, that needs to be invented.

That's why it's hard.

If it has to be invented it's not hard tech, it is hard science. YC has a separate strategy for that.

For these kinds of projects, the line is very blurry, though I agree there is a large science component.

Can't make use of the science portion of it if the engineering portion isn't ready, too.