FP 在應用程式的高峰可能在 2013~2014 左右,那時 John Carmack port Wolf3D 到 Haskell 上,還提到:
I haven't done any functional programming since I started crunching at Oculus, but I consider the time I spent on it extremely worthwhile.
也說過:
I feel a touch of impostor syndrome when I get invited to speak at functional programming conferences.
同年 (2014) audreyt 在 FLOLAC'14 給了演講《函數程式設計的商業應用》。