[azatris]

You can easily do routine work for 8+ hours daily. The sort of work that can potentially be automated one day. What you call "coding" is routine enough in my book.

But if you're doing something novel and solving hard problems, I think 4-5 hours would be a maximum for sure.

[isoprophlex]

How can you presume to know if their coding is "routine" or not?

[nickthemagicman]

I 'think' they mean the universal you. Sometimes replaced with 'one'.

[mkranjec]

What qualifies ad routine coding and hard problem solving in your book?

[azatris]

I would call routine coding something like you have a set of constraints and you just have to manipulate code to fit these constraints.