I created new map: The map of global catastrophic risks connected with nuclear weapons and nuclear energy.
The map is interactive: if you press on the icons on the first page you will get detailed explanation of the topic. But it works only in pdf.
I hope it will make the map more readable but also will help to preserve all detailed information
You could download pdf with working links here: http://immortality-roadmap.com/nukerisk3bookmarks.pdf
Or you may read a presentation here: http://www.slideshare.net/avturchin/global-catastrophic-risks-connected-with-nuclear-weapons-and-energy
Old school map full of text is here: http://immortality-roadmap.com/nukerisk2.pdf
I would like to get a feedback about this new map type: Is it helping readability and understanding? Does it look more rational and convincing?
I include here jpg-screenshorts of the pdf, but working links are only in pdf.
Fission weapons with arbitrarily small yields are possible, it's just that you have to sacrifice efficiency. Before the CTBT, tests of < 1 ton yield were routinely carried out as part of hydrodynamic bomb testing. The smallest critical mass for plutonium (assuming an advanced weapon design) seems to be about 2-3 kg, giving a minimum yield of 5-6 kt without losing efficiency (and thus provides a minimum cost bound for a fission weapon). The 10 MJ figure I gave was assuming the smallest possible primary, and a staged design. I think at this point we hav