How to Identify Pseudoscience: Lessons from Velikovsky and Catastrophism

Phrenology, essential oils, homeopathy, reflexology, ESP, astrology, creation science, climate change denial, blood-type diet, vaccinations cause autism, quantum computing, smoking causes cancer,  dinosaurs were killed by an asteroid impact, HIV causes AIDS, low-carb diet.  Which of the above would you classify as the products of good scientific research and which would you classify as pseudoscience?  […]