In this piece, I explain why Uber and Lyft will merge. The trajectories both are following show that they will have challenges with Lyft gaining on Uber, but the overall industry cooling. As soon as that happens, their margins, if they have any, will collapse. Once that happens, they will begin to talk of merger, with each other. Government will see their struggles, and will dismiss any anti-trust concern gone. The result: it will bless their union. Uber is today’s Category-King, but its past behaviors have slowed it down, offering a window for Lyft to catch-up. As they become peer-competitors and rivalries, they will destroy the sector. Similar rivalries have ended together:: Elance/Odesk (now UpWork), Groupon / LivingSocial, Sirius / XM and Rover / DogVacay. Please add DraftKings and FanDuel in the list; I predict they will merge also despite any FCC ruling, at the moment. They will struggle, owing to wounds they inflict on each other, in coming years, and will be saved via merger.