Just came across this fascinating historical theory about market cycles that's been floating around crypto and trading communities. It's based on work by Samuel Benner back in 1875, who tried to map out economic patterns – and honestly, it's worth understanding even if you don't fully believe it.

Basically, Benner divided financial markets into three repeating periods that cycle roughly every 18-20 years. Understanding these periods when to make money could completely change how you approach your portfolio.

First, there are the panic years – what he called financial panic periods. These are the rough times: market crashes, liquidity crises, widespread fear. Think 1927, 1945, 1965, 1981, 1999, 2019. The advice here is straightforward – don't panic sell. These years typically come around 1927, 1945, 1965, 1981, 1999, 2019, 2035, 2053. You want to hold tight and avoid emotional decisions.

Then you've got the boom years – the golden periods when prices are surging and markets are recovering strong. These are your windows to take profits and sell. The theory suggests years like 1928, 1935, 1943, 1953, 1960, 1968, 1969, 1973, 1980, 1989, 1996, 2000, 2007, 2016, 2020, 2026, 2034, 2043, 2054. Notice 2026 is coming up – if this pattern holds, we might be entering another uptrend period.

The third period is recession and decline – the hard times when prices drop and everything feels sluggish. But here's the thing: this is actually when smart money moves. Years like 1924, 1931, 1942, 1951, 1958, 1969, 1978, 1985, 1996, 2005, 2012, 2023, 2032, 2040, 2050, 2059. These periods when to make money happen because you're buying at the bottom. Accumulate during these phases, then hold until the boom years arrive.

The overall strategy is elegant: buy low during recessions, hold through the panic, then sell during booms. Rinse and repeat. It's the classic wealth-building playbook, just mapped to historical cycles.

That said, don't treat this as gospel. Real markets are way more complex – geopolitics, tech disruption, policy shifts, wars, pandemics. Benner's cycle is more of a macro framework than a crystal ball. But it's useful for zooming out and thinking about long-term positioning instead of getting caught up in daily noise. Markets do seem to have rhythm, even if it's not perfectly predictable.