You don't really have a good direction on a random day and can't really get into the zone? Fix some small bugs for 2h and then call it quits, go to the gym, drink beer with your friends.
You got that one feature that you know exactly how you build it and you're on fire for it? Knock yourself out in a coding session of 2 x 20h and take 3 days off afterwards. Much bette than forcing yourself to quit at 6pm even though you're burning to do it.
Productivity means taking advantage of the human cycle, which is comprised of your mood, hormones, the characteristic of your problem and many more factors that you can't really control.
We already have blockchains that are near infinitely scalable and decentralized with Elastos, IOTA (at scale) and Holochain with its agent-centric architecture instead of data-centric architecture as most blockchains have it, which is launching in a couple of months.
Nano is also very, very good and decentralized, has even instant transactions through its block-lattice architecture, but it isn't near infinitely scalable to billions of TPS yet or at least not yet.
The thing is, 99% of readers here think bitcoin is shit, because of the go to arfuments, that bitcoin is too slow and only used by criminal and by extension, they don't like the blockchain either even though the weaknesses of Bitcoin have already been solved by many blockchains.
But they don't know that, so they keep bashing the blockchain without having any knowledge of other good platforms.
Replacing means that Apple doesn't innovate further.
This always happens with big companies, Nokia, Ericsson, Yahoo, they are replaced by new companies.
5 years ahead for the big company means no progress.
Apple is where it was 5 years ago in terms of innovation. They havent done anything new that was meaningful and only reap the benefits of what jobs invented 15y ago.
Before modern times it makes you starve and die, because you didn't feel like you need to be selfish to take precautions for winter and put the needs of others first.
Today, it'll prevent you from becoming well off and free from corporate bullshit, because you don't really have ambition. So you have to work for the rest of your life in some middle class job.
Having a big ego is bad, having no ego is bad.
You need to figure out in which situations you need a big ego and in which you need none.