1945? Bank robbery is still incredibly easy. Literally all forensics is during this time period is just fingerprinting. People are also malnourished and incredibly weak compared to the average person in 2026. So beat up some GI that illegally kept a gun from the war, use that to perform a series of bank robberies along the west coast of the US and the American South (where Gold stores were concentrated during the gold standard period we find ourselves in).

After that invent corporate trusts and the concept of multi-layer corporate holdings. This would be having a corporation per property owned, which is owned by a corporation and uses services from another corporation, all of which eventually ends in a labyrinthine ownership path that few, if any, forensic accountants in the 1940s could possibly follow to find out it’s all just me.

By understanding, even just vaguely, which cities and areas get built up over time in history and buying surrounding properties cheaply and simply holding them until areas are built up enough to sell them for massive profit I would be able to generate essentially infinite money from basic seed money. Add onto this a series of bank and hedge fund holdings that are informed roughly when to invest in specific companies as they come up through the ages the infinite money glitch becomes an exponential money glitch.

Again layers and layers of holdings on holdings on holdings creates obscurity and complexity that would take well into the age of computers to ever unravel. A kingdom easily rivaling the Rothschilds, while being even more hidden as I’d be copying their modern techniques a half century before they perfect them.

With infinite exponential money during the golden age of capitalism I can wait until the present day when I’d no longer be effecting the timeline and then start funding communist revolutions globally, allowing for myself to become a martyr in the revolution.