I'm asking ChatGPT to generate #personalproductivity system & it occurs to me that they're all as good as #GTD and the like because there is almost no data to back up the efficacy of these systems.
Also reminds me of Little Miss Sunshine's dad who was a fictional motivational speaker with some fictional GTD-analogue
https://pubmed.ncbi.nlm.nih.gov/?term=%22getting+things+done%22&filter=simsearch2.ffrft&sort=date