"Add two quinoa packs" is more cognitively loaded (particularly for non native eng speakers) than the act of tapping on + to increase by 1. Similarly, for cale

"Add two quinoa packs" is more cognitively loaded (particularly for non native eng speakers) than the act of tapping on + to increase by 1. Similarly, for calendar you are missing the author's point - we are spatially trained - Ex. concept of memory palace [1]. Totally agree with author on "We know that our schedule is "full" because we see lots of space occupied by boxes." [1] https://en.wikipedia.org/wiki/Method_of_loci https://en.wikipedia.org/wiki/Method_of_loci