By Lars Mucklejohn The chief executive of Thought Machine, one of Britain’s most valuable fintechs, has thrown his weight behind a London IPO, but admitted he is under pressure to list in New York. Paul Taylor, who founded the London-based banking software provider in 2014, told City A.M. that Thought Machine was “definitely going to IPO” and gave his clearest public indication yet that the capital is management’s preferred destination. “London is our home, and all other things being equal, we’d be very keen to list in London,” Taylor, a former Google executive, said. “But it’s not just a deci…