The paper behind this meagre article talks about 10-240 second bouts. The 20-60% figure is for 30sec bouts.
Benign
joined 5 months ago
If someone want an alternative there is ebooks.com. The two titles I got from there were way cheeper than on the store linked to my device. No nonsense app or anything, just download the file from the store and do what you want with it.
Maybe consider https://fossil-scm.org/home/doc/trunk/www/index.wiki I haven't had a chance to use it myself, but I am intrigued.
US law doesn't care what companies do to consumers. The law only cares what they do to other companies. Apple own their own hardware production and ecosystem, so they aren't harming other companies (directly).
No conspiracy needed.