Stablecoin giant Tether led an $8 million strategic investment in Speed, a payments infrastructure company that blends Bitcoin’s Lightning Network with stablecoin settlement to move money in real time. Speed processes more than $1.5 billion in annual payment volume and serves about 1.2 million users and businesses through its wallet and merchant products, Tether said in a press release. Speed’s system routes payments over Lightning for its quickness, while allowing settlement in USDT for users who want ...