I watched the video.  The indicator seems reliable to me.  and felt reliable.  But it cannot be completely reliable.  Moreover, it will only work when the market is stable.  So it cannot do anything by timing the trading.  I saw this guy in the video claiming he made the indicator himself which is also a bit suspicious.  Because there are many such videos and most of them are scams.  So it is better not to trust these indicators blindly.