Cryptocurrencies have been tumbling worldwide as the Ukraine war prolongs and the spectre of still higher crude prices and inflation haunts countries. In over six weeks, the global crypto market has lost around $830 billion, hurting investors, even as stock markets remain highly volatile globally. On May 16, the global cryptocurrency market capitalisation (m-cap) was $1.27 trillion, less than half the $2.83 trillion in November last year. Bitcoin, the most valuable cryptocurrency, was trading at $29,505 (around Rs 23 lakh) per coin, compared to $64,862 (around Rs 50.5 lakh) in November. The big fall, however, came in the second week of May, led by the crash of “stablecoin” TerraUSD (code-named UST) which fell to $6.16 billion (Rs 47,934 crore) in m-cap, a 63 per cent fall from a month ago.…