I’ve always felt like Leonard got a bit sidelined in the finale of The Big Bang Theory, and there was actually a perfect setup earlier that could have fixed it.
Back in Season 6 (the episode where he gets research funding and considers buying a laser), lenord should've bought some random experimental machine instead. He runs a bunch of tests, gets what looks like complete garbage data, and everyone thinks he just wasted the money.
Now fast forward to the final season. Sheldon and Amy come up with super-asymmetry. Instead of random scientists proving it, Leonard realizes that his old “useless” data actually matches their theory perfectly. Proper eureka moment.
So it becomes simple:
Sheldon and Amy build the theory
Leonard provides the experimental proof
The writers could've still kept the drama. Sheldon would obviously dismiss Leonard’s contribution as accidental, which builds tension leading into the plane scene where he’s already being insensitive. It just hits harder because Leonard actually did something huge.
And honestly, it would’ve been such a satisfying payoff for Leonard. The whole show he’s compared to his family and never really gets that big win. This could’ve been it, even tying into his mom, finally being proud of him.
Also feels fitting that the show literally starts with Leonard Hofstadter and Sheldon Cooper, both names tied to real Nobel Prize winners, and ends with both of them actually winning.
Feels like a missed opportunity to me tbh.
TL;DR: Leonard should’ve used that Season 6 funding to accidentally generate data that later proves super-asymmetry, making him the experimental half of the Nobel alongside Sheldon and Amy.