i sometimes impulsively delete the tweets i just posted because of the feeling that i'm bothering people with what i say on twitter. that may also be the reason why i'm not tweeting as much as i used to. that's an issue about myself, that is to say, irrationally questioning my own relevance about posting stuff on that website, that i've been trying to solve for several months, without any success. i'll just ask you not to bother about it until something comes up.