They say that seeing is believing, but do we believe what we see, or see what we believe? Unfortunately, our beliefs can act like filters, and warp our vision.

Astronomy was shaped, for the most part, back when very little was known about electricity. It is a reluctance to recognise phenomena that scream EM that leads to wild speculations such as Dark Matter and Dark Energy, which people discuss on this very board as if they were almost beyond question.