This is not a question of why would you want to but rather a voluntary test of free will similar to fasting. How long can you go without logging onto your computer or smart phone if it was not necessary to do so?
Great question. Aside from work I think I could stay offline for just a couple of days or so unless I'm on vacation. These things are quite pervasive and so much info is available at your fingertips that it's hard to quit checking or browsing. But I must admit that I can limit my time spent on the web much more easily than simply not using it at all.
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