Seeing math on Lined Pages is unsettling to me. I agree with author that Blank Pages tend to become a mess, and that Gridded Pages are too "noisy", that's why Dotted pages are perfect and prefered for Journals, especially ones with very light dots. I wonder why I don't see more of those in math.
Yeah, I also found dotted notebooks to be the sweet spot. It's cleaner than a lined or gridded notebooks and especially helpful if they're already numbered.
The tweaks they found in the article is basically a proto-version of the Bullet Journal but just with its index system.
Physical notebooks are nice but as I have to come to know throughout the years, they are also kind of "disposable" and cannot survive long-term if you have to do any amount of moving. You wish you could keep all of your journals/notebooks in an archive but seems infeasible when you don't have your own house or your house is just too small. The rising rent and house prices just makes this all the worse.
I agree lined paper is inappropriate. I like dotted pages for my planning as I'm drawing a lot of boxes and arrows etc. I think squared paper is great for maths, though. You just have to find one with light and pleasing lines. Just spend a bit extra and get something decent. In the UK I use Pukka or Rhodia. They both do dotted now if preferred.
