By Luc Olinga Digital-asset managers want to convert their funds into bitcoin spot ETFs. The SEC hasn’t agreed. It looks a bit like a strategy straight out of Sun Tzu’s “The Art of War.” One of the cardinal rules the Chinese military strategist and philosopher recommends: make your opponent understand that they have no chance to get away with it if you engage in combat — a psychological victory in a way. This is the strategy that the bitcoin evangelists seem to have adopted vis-à-vis the U.S Securities and Exchange Commission. What’s at stake: Getting the market watchdog to approve spot excha…