There is an element of tech company led social engineering going on here: everyone and their dog want to be able to sell their kit as educational if they can. So we get told about the wonders of the internet constantly and schools end up buying iPads instead of books. Your point about libraries stands admirably in light of this. Using different ways to find out information is a skill in itself.

That said, nobody is disputing the need to work, only the manner in which that work is carried out.

Repetition work for some problems but not others, and you need to repeat the correct activity. For example, repeating facts rarely help problem solving, while training at unique problem solving do help to be better at problem solving.

We also need to be careful, as one of the best way to burn people out is to do repeated activity on something they already mastered and feel impowered and hopeless by being forced to repeat them over and over again.

no. repetition should be a result of the child wanting to be better. if commanded to repeat the child will approach the subject to learn with minimalism.

if child is influenced to like the subject and repeatition is a result of a drive to get better; it will not minimise the effort but maximise instead.