I definitely feel my attentiveness and focus dropped dramatically after computers were introduced into my work life. It's a shame that computers provide such a thin line between work and entertainment.

You can make that line thicker. You can create a new user on your computer specifically for work, with a restricted environment. You could use VMs or dualboot or something.

Personally, I'm very happy that we have devices that are capable of doing so many things.

Personally I am considering buying a device to attach to my plug socket for the router. It shall have a crude timer to switch off the electricity.

I think most solutions to the problem are far too complex and this shall suit my needs just fine.

You can but you won't as long as it is possible to bypass the trick, because you are inevitably attracted (not to say addicted) to the online web content and interactions and you'll quickly switch back to it.

I see that as a problem with the person viewing the content, not the device that enables them.

There are technological tools to help you. There are psychological tools to help you. You can call upon your friends and family for help.

But for gods' sake, don't blame the computer. That's not going to help anyone.

This is a fair position, but we shouldn't forget that companies have poured billions of dollars into making these "tools" as addictive as possible, because that's ultimately how they make their money. See [1] and [2] for more.

[1] - Addiction by Design (https://www.amazon.co.uk/Addiction-Design-Machine-Gambling-V...)

[2] - Chomsky on Advertising (https://www.youtube.com/watch?v=3CFwSQiTu3I&t=186s)