I was listening to the Consummate Athlete podcast the the trainer guy mentioned “eyes open” for intervals. He was listing off important things to focus on durring training.
I often close my eyes for vo2 max sets and count in my head to the beat of the music I am listening to.
I don’t know if anyone does something similar, but I wonder if I SHOULD keep my eyes open to learn to suffer WHILE looking ahead so that I can replicate the effort outside. I was just happy to have found a way to nail those sets.
You’re always going to be looking where you’re going so look ahead while working. No reason to make it even more artificial than being on a trainer already is.