Moving into the middle ages, William the Conqueror managed to rout the English and rule the country, then see off numerous plots and assassination attempts, before his horse did for him in a nasty fall, killing him at 60.

Kottmeyer and others who use the psychosocial hypothesis constantly produce evidence to support their ideas, whereas the ETH proponents can produce only cranky ideas about magnetic, anti-gravity or interdimensional saucers, accompanied by a constant whining about sceptics and debunkers (not to mention armchair ufologists and pelicanists).

"I have Motor Neurone Disease. Before long, I shan't be here. That's pretty straightforward. … My future is time-limited. The disease affects my abilities. It will get worse. There is no cure.

Spontaneous cervicocerebral artery dissection (CAD) is a common etiology of ischaemic stroke in young adults.