The virtual currency market is too small to cause problems, if there is a crash

Bitcoin once again moved to the centre-stage, zipping past the $10,000 mark recently. But its supporters were unusually silent this time, and rightly so. There can be no logical justification for a currency to appreciate 1,350 per cent in one year, except surging speculative demand. The detractors of bitcoin, on the other hand, have been very vociferous, predicting a bubble and an imminent cra...