Just stumbled upon something interesting from market history. There's this old theory from Samuel Benner dating back to 1875 about recognizing periods when to make money in financial markets. He was basically trying to crack the code on economic cycles, and honestly, it's still worth thinking about today.

The core idea is pretty simple but powerful: markets don't move randomly. They follow patterns—boom, recession, panic—that repeat roughly every 18-20 years. If you can identify where you are in the cycle, you can actually position yourself better.

Benner broke it down into three types of periods. First, there's the panic years. Think 1927, 1945, 1965, 1981, 1999, 2019, and if the pattern holds, 2035 and 2053. These are the rough patches where financial crises hit and markets collapse. The advice here is straightforward: don't panic sell, stay cautious, and hold tight.

Then you've got the boom years—the golden periods when to make money by actually selling. Markets are recovering, prices are surging. Years like 1928, 1943, 1960, 1973, 1989, 2000, 2007, 2016, 2020, and coming up 2026, 2034. These are when you take profits and get out while prices are high.

The third category is the recession and decline years. Prices are beaten down, economy's sluggish. This is when smart money buys. Years like 1924, 1931, 1942, 1958, 1978, 1985, 2005, 2012, 2023, and projected 2032, 2040. You accumulate during these periods and wait for the boom to come around.

So the strategy is elegant: buy low during recessions, hold through the transition, then sell high when boom arrives. Skip selling during panic years—that's when emotions run hottest and losses are deepest.

Now, here's the catch. This theory is based on historical patterns, not some universal law. Markets get shaped by geopolitics, tech breakthroughs, wars, policy shifts—tons of variables. But as a framework for understanding long-term cycles and identifying periods when to make money? It's surprisingly relevant. Worth keeping in your mental toolkit when thinking about timing and market positioning.