[alecbz]

Not sure how seriously to take this but:

1) First of all, staying in the world of pure deductive reasoning, isn't this fallacious?

> lack of skills to explain yourself is caused by lack of understanding yourself.

It's: (can't explain) => (doesn't understand), not (doesn't understand) => (can't explain). (I.e., there could be other reasons you can't explain yourself well).

2) More seriously, I think the "if you can't explain it you don't understand it" adage is more about concepts than about people. A person is a complicated set of constantly changing thoughts and emotions, and I'm unsure that it's possible to explain the entire phenomenon of a given person "simply".

That said, I think there's definitely a nugget of truth here. Often you feeling lonely may be the result of you not expressing yourself openly or honestly with people around you.