Overwhelmingly I see one big problem with them all…
They all (well the ones I have read) focus on getting more out of a day rather than doing the right things that day.
For example a common thread is just do your big 3 things.
But… what if those 3 things aren’t the right 3 things???
It makes a big assumption that we know what the most important things are…
It’s likely we just get more efficient at the wrong things.
EFFECTIVENESS eats efficiency for breakfast!