alt Hacker NewsYes, we don't know how to do that, but we don't know how to build hundreds of aircraft carriers per year right now either, yes the US has done the later in WW2 and would probably be able to do it again should it be needed in an existential war.
With a sustained nationwide effort comparable to WW2 we could most likely send a spaceship out if the solar system in ten years or so. But why would anyone do that?
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Building hundreds of aircraft carriers a year is an issue of scale, so of money and allocation of resources (assuming we have the manpower). But what I mentioned is more profoundly that we simply don't know how to even build one. It's knowledge and technology which are lacking.
Typical these things fall into one, two, many. Can you build one, two, many? These are very different propositions.
One means you know understand how to do it, mostly.
Two means you can repeat it, so you do understand it, it wasn't a fluke.
Many is scaling the process.
The highest production year was 1943, with 65 completions (including those built for Britain) and of those 65, only 6 were Essex (fleet) and 9 Independence (light) carriers with the other 50 being small escort carriers.