The third commenter to this article, BBC NEWS | Science & Environment | Number of alien worlds quantified, manages to upset me.
It’s a fact that aliens have been visiting Earth for last several thousand years. Many of our technologies are gifts from them.
Not only is this just wrong, but it is denigrating the hard work, frustration, sweat, and all the rest of the unpleasantness that everyone working on new technologies goes through. On top of that it denigrates the intelligence of those who fund the efforts, from government leaders to angel investors.
This person has absolutely no clue about how scientists discover the laws of nature, or how inventors, engineers, and technicians apply those laws to build new technologies.