Thank you all for you votes!
I feel that I'm ready to make the final decision. It's not that easy, I've already spent 2+ days weighting all possible outcomes. I may disappoint somebody, sorry in advance.
While the results are slightly in favor of automated backtesting, I would prefer to go for manual backtesting, learning and training. Here is why:
Yes, it will not be hard for me to develop yet another automated strategy builder, add some code to run it automatically and fill it with various random inputs from indicators. Easy interface, cool charts, loud sales letter... But I will get just yet another piece of code nobody will ever use to make money on a regular basis. I will earn more money, but it will never translate into my customers' success.
Before I came to the market, I spent several weeks trying to find profitable traders. I finally found several dozens of them but nobody is a pure quant. All of them trade manually, some use quantitative technologies to get deeper insights about the market, some partially automate market research and trade execution. Nobody makes their living from pure AI or any other type of algorithm.
The strongest trading mathematician I knew, who invested 90% of his time into statistical analysis and internal software development, still made final decisions by himself, using his gut feeling of the market. He made $2,000,000+ out of $20,000 in 12 months in 2001, publishing each and every trade he made in a Yahoo group. While his trades were mostly maths-based, they had a solid trading psychology background. He clearly understood currently active groups of traders and was able to predict their actions if something goes right or wrong for them in the nearest future.
Maybe quants are just secretive, maybe there are plenty of them, but I failed to find anyone who is consistently profitable, if not take into account a number of self-promotion articles/websites/blogs without any long-term proven track record. Yes, there are huge quant funds that may be profitable, but I my goal was to find an independent retail trader or a small group of them. Even if we are talking about quant funds, I can't be sure that there are no human intervention, especially if taking into account a team of humans that constantly updates all these algorithms and decides whether they are good or not for current market conditions.
I personally met 2 traders, each of whom spent 10+ years on this problem without any success. They were persistent in making negative talks about how hopeless and time-consuming it may be
I have enough education and experience in data science but I still don't believe in long-term success of quantitative trading, especially when we are talking about small retail traders. Maybe some big guys doing HFT using computer farms at exchange ground floors have a chance to earn big, but I don't want to give even a tiniest piece of hope to a regular computer-literate guy who will ever come to me for the solution.
Yes, I will lose big money by ignoring this market. I'm sure that those who will follow the "please them all" route will earn much more than me serving regular human traders, not star software developers. I'm ready to accept this loss, but I'm not ready to develop and sell something that I'm not confident about. I would be happy about average outcomes for the users of my products, not for top ones. I hate trading competitions because they almost always put the least lasting trader on top. Yes, there are rare good exceptions, but not to be happy about the idea itself.
I'm sure that there are plenty of profitable manual, human traders. I've found a lot of them, several dozens until I felt that it's enough. A lot of them are 20-30+ years in the business which means a lot for me. I prefer measuring probabilities based on long-term data sets, not trying to make assumptions on just 3-5 good years. I came into the trading niche because it's at least a thousand years old which means that it will last for the next 1000 years, at least. It may evolve, but humans will always win against computers, especially when we are talking about human+AI synergy.
So, I will focus on manual backtesting, learning and training. I'm sure that I can develop the best product which will really help people to trade better. Nothing beats screen time and experience, but I can try to help them to earn it faster, easier and less risky.
I may also add some quantitative technologies in the future but only as a way to assist human traders, not to replace them. I feel that I can borrow a lot from the quant universe that may actually help human traders. I'm not a luddite. Anyway, my focus will always be on people, not algorithms.
What's more important is that I will develop something that I will be confident about. Something that will not make me feel bad when I sell it because I will know that I've just helped somebody, not only "made more money". It may sound naive, but it's my personal choice. My wife supports me this time, which is a good sign as well
