The cartoon characters on the front cover, the irritatingly meaningless track names . . . make it seem like a concept album about global warming for kids. Since the lyrics remain a bafflement, it might well be.

The one thing that all alternative set theories have in common is the fact that they are alternatives to ZF or ZFC.

I had some finger trouble and began my letter 'Dead Sir or Madman'.

https://www.ianvisits.co.uk/articles/50-years-ago-a-huge-steel-umbrella-for-oxford-circus-tube-station-8955/ accessed 2023-09-24.