Now I am investigating "loneliness", and reaches a hypothesis in this month column.

"SNS is a system that exacerbates loneliness dramatically"

I have previously described such a diary.

Now I get beyond this phrase, and I reach the possibility of

"SNS will give us mental pains, make us impair the body physically, and decrease social functioning"

and come to be anxious about this problems.

I think that I can explain the reason in this month column.