This week, Rett Wallace, the CEO of Triton Research, came on to talk about why he sees almost nothing in Lyft's IPO filing to asses the business and why it could be Snap all over again. Former New York Federal Reserve President William Dudley joined before the FOMC rate decision and said why he thinks tightening may be back in play later this year. Brad Setser, senior fellow at the Council on Foreign Relations, joined to discuss why China may be uncomfortable about where trade talks are going with the U.S. Then Eric Larchevêque, CEO of Ledger, came on to talk about blockchain security and their new wallet.