Cpl Kendall wrote:And this somehow changes the technical challenge of timing?
It demonstrates that the timing system for an implosion type bomb was within the technological capabilities of the US in the 1940s.
The US had the full resources of a nation involved in the construction. A nation that's industry wasn't even operating at full production. As well as the backing of installations in Canada and the UK, it took four years to even detonate a bomb.
And was a great portion of that effort devoted to building the fuses? I would guess not.
Contrast that with Iran, North Korea or Pakistan. The first two have barely enough resources to get two sticks to make fire with and Pakistan was simply incompetant. As well as the fact that this information is not just simply out there to take. Nuclear fuses and triggers are highly classified and restricted information and technology. Unless someone shares it with you, you have to develop it yourself. That involves a fair bit of trial and error, see North Korea with it's duds (they were dumb enough to buy the plans from Pakistan whose first bomb failed in the same manner).
But Pakistan did in fact build a functional nuclear weapon, did it not? So by your own argument, these fuses are within the capability of even an "incompetent" nation today.
I'm not suggesting that nuclear fuses are something that you could pop down to your local hardware store and buy. But nor are they the one great super-sophisticated gadget that is the stumbling block stopping everybody in the world from building nukes. It just seems to me that the way some people talk about this, it's as if they think North Korea has completed nuclear bombs sitting there, useless because they just can't build those darned fuses.
Fuses are just an element, and given that they were within the capabilities of the US sixty years ago I'd bet that they are far from being the most difficult element at that.
Give a man a fire, and you keep him warm for a day. SET a man on fire, and you will keep him warm for the rest of his life...