i've since bested many more. i think the only one that might have eclipsed Portal 2 is Bioshock Infinite.
https://twitter.com/mikesusz/status/600465793634201601
also in two years i've gone from laptop gaming on my mac (with the touchpad! lol) to building a gaming PC, building mechanical keyboards.
my proficiency at games has increased, but i expect i will plateau and begin to decline as (i age and) my motor faculties decline.