Nearly $3 trillion in market value disappeared overnight amid a massive selloff of assets. US, Asian and European stock markets, as well as gold, silver and cryptocurrencies, have been under attack. Stock market losses are estimated at 1.7 trillion dollars, precious metals - about a trillion dollars, and the crypto market - another 140 billion dollars. Investors fear that investments in artificial intelligence will not pay off, and that tensions between the US and Iran will escalate into a new military conflict.