Describing him as a “billionaire math geek who turned AI into a money-printing machine”, a recent feature in The Wall Street Journal explained what gives Dr Alexander Gerko his edge. The London-based financial trader’s company XTX Markets Technologies Ltd built an artificial-intelligence system long before chatbots proliferated putting it leagues ahead in the world of algorithmic trading.  That strategy is now being turbo-charged as XTX Markets gets set to start operations at the first of five planned data centres being built in a $1 billion-plus complex in Finland. But two glitches with an Irish twist have hit the fintech of late,…