The video idea shows how signals can be non-repainting and one can back-test. we are talking more on buy/sell signals from the pine scripts. one must need to ensure that signals are not repainting and this can be very easily ensured by correct coding practices.
in example i took nifty50 15 min chart and just replayed the study developed by me.
in example i took nifty50 15 min chart and just replayed the study developed by me.