Do financial instruments count as technology?

Re this, JB comments that showing any kind of relationship between financial and technological innovation is kind of hard, but rather liked this illustration – of what happens when you let an entrepreneur also run monetary policy. (When was Spain’s first bubble? Spanish Wikipedia is big on Anglo disasters, but doesn’t mention Spanish railways in…
A broker converting coin into MIssissippi stock in the Dutch print series, Het grote tafereel der dwaasheid, The great scene of folly.

Unusual duelling weapons

Of sausages, sugarcandy, daggers on helmets, sharp-bladed collars, pills, and billiard balls, with a note on zombie destruction.

Hammer horror!

Why the guillotine should not be Spain’s tumbril-filler in the coming revolution.