AST SpaceMobile, Intuitive Machines, and QuantumScape could skyrocket.Over the past few years, many speculative tech companies went public by merging with special purpose acquisition companies (SPACs). Some of those stocks initially soared, but a lot of them fizzled out after they broadly missed their pre-merger projections. Rising interest rates also drove many investors to dump those riskier stocks.But now that interest rates are set to decline over the next few quarters, it might be time to revisit some ...