I was about to mention perhaps they mean faster to write, and also conceptualise, but you nailed it. I find with F# that sure you are writing less actual code,

I was about to mention perhaps they mean faster to write, and also conceptualise, but you nailed it. I find with F# that sure you are writing less actual code, like 1000 characters instead of 2000, but for me the biggest gains from using/thinking in a functional paradigm, and having access to functional tools is in the process of actually tackling problems. The conceptualisation, execution and testing of solutions for these problems for me has been less onerous and more enjoyable with F# than using C#.