Hmmm. Fusion. Even if sustainable ignition is made to work, and a perfectly functioning fusion reactor can be built - it's still completely unknown if it can be

Hmmm. Fusion. Even if sustainable ignition is made to work, and a perfectly functioning fusion reactor can be built - it's still completely unknown if it can be used as a useful power station: http://www.scientificamerican.com/article.cfm?id=fusions-false-dawn http://www.scientificamerican.com/article.cfm?id=fusions-fal... Anyone interested in fusion power really ought to read that article. The main thrust of the article is: a) even if you build the reactor, how do you capture the energy - which is mostly emitted in the form of neutrons - and b) where are you going to get the tritium from. Currently the answer to both questions is 'don't know'.