Re:Why do we need this word "meme"? (Score 1)

The scientific weakness of this study of memes is that there is no rule for why they do or do not spread. Genes and natural selection are two great tastes that go well together, since creatures with bad genes die. But if a person has a really dumb idea and gets killed, (e.g., lies down in the middle of a two-way street) then whether it is imitated or not depends on whether they get on the evening news.

All you're showing here is that memes and memetic evolution are orthogonal to genes and genetic evolution. It's true though that the mechanism behind memetic selection is not as well defined as that for genetic selection.