system
A chat on subreddit /r/wallstreetbets
human
The percent is more important than the absolute value
gpt
Which is also not important as it is almost certainly pure luck. In finance even a decade can be an anomaly. Trading one year and making huge returns is nothing new or special. Mathematically, there has to be a big winner, tho they tend to be institutional investors. If he can continue that success for about 5 years, we can talk. To be sure he needs to continue that success (or at least outperform a benchmark) for 10+ years.