Except it isn't. Di2 didn't transform shifting. Shimano shifting was already excellent with a cable. Lazy? Yes. Expensive? Yes. Heavy? Yes. Foolproof shifting? No. Causes you to get a bank loan when you fall off drive side and smash a shifter and mech? Yes. 105 was always about reliability and affordability. A rear mech costing £50...not hundreds. It just sucks. And let's not forget we have a finite resource of precious metals....and we wasting it on allowing some fat bloke to ride their bike up a hill slowly shifting into their 34 36 with a light press of their pudgy finger. Shimano can swivel on my fishing rod.