Perhaps not 1:1, but, personally, I can read for much longer than I can write. And so I'd argue that this duration increase matches any deeper thought that comes with shorter writing bursts.
That should tell you something about how much effort (thinking) is required for the activity. The fact you writing is t something you can do as much as reading means you use your brain a bit more. I would claim that consuming information always uses less thought then generating information. For a human brain at least.