This includes no contact interaction with the outside world what’s so ever. No computers, no phones.
Depends what you mean by total isolation. I wouldn't fancy being locked in a cell for five days but to spend five days without seeing another person would be no big deal. for example living in a remote cabin with a few good books.
There was a an early pop song with the words "people who need people are the luckiest people in the world". Absolute nonsense. People who are self contained and can live without human contact are the lucky ones.
I get my rattie roommate right? Because five days to him is like 5 months of his life and I would miss him and he would miss me....
Do I get to have my dog? Don’t see an issue then.
If you are talking about total isolation I could probably do it for one or two days. If you are talking about no human contact but having the freedom to walk around books to read and nature around me that would be easy.
A book? yep I bet I could. This past year for personal reasons I've spent 95 percent of my time without anyone around...I must admit I had a computer..but 5 days? easy.