What experiment has proved that evolution is a fact?
Every year the flu virus evolves into a new form that is not affected by the previous year’s vaccine. If that is not evolution then we are wasting our time and our money on these vaccines. I doubt if they have changed due to the wave of a magic wand. I guess the experiment could be stated as: if you take last years vaccine for this year’s flu, you will probably get sick. Or at least the percentage of people using last year’s vaccine and getting sick will be a lot higher than those using this year’s vaccine.