I have been living alone for most of the past 5 years. I probably avoid loneliness by spending a ton of time on creative endeavors and artwork, and I am at peace with the solitude and do not need the comfort or attention of others. I have gone months only leaving the house to buy groceries and not visiting family or friends in person (working from home).

I do not think an average person would be able to live like this. It takes a certain type of driven, focused personality who can dive into their work or hobbies and be happy with their head below water for a while without seeing anyone. I suspect Aristotle and Nietzsche both had these qualities.