To me, backtests are constructive but like you said, not predictive and perhaps questionably meaningful. Any good strategy using technical analysis will be able

To me, backtests are constructive but like you said, not predictive and perhaps questionably meaningful. Any good strategy using technical analysis will be able to identify a trend in any market. What differs are entries and exits. These factors can be influenced by current events making them tough to model into an algorithm especially with one with a shorter timeframe.