I totally watched this whole video while everyone else in HQ was at the library for summer story time. It’s not about pencils or Blackwings really, but is instead largely about creativity.
I like the bit about limitation enhancing creativity. I had a short fantasy of locking myself in a room with:
1 type of pencil (EGAD!)
1 composition notebook
1 US gallon of coffee
and not coming out until they were all spent, and something was, well, written. Instead, I had a single large cup of French-pressed coffee and made notes to make more (and better) notes.