what is open interest on exchanges, it's not very easy to understand for me, and
how can we use "Futures Open Interest" to predict bitcoin price at a certain period?
From what i have learnt so far, Open interest means open positions or open trades. Simple explanation is, it's the current number of open trades but only in future. So, if you could come to know the intensity of open interest then with combining other TA and FA, you might use this measurement as indicator for price. But, i don't think a newbie could handle this information.
But the most simple help it might give to us, But according to me is, When the price is going up and the open interest is also rising then its means the market is bullish and vice versa. Other, than that, it depends on your need like how you use it. Because many traders used to make their own strategies and could use this indicator in them. I think if you could use the fear and greed indicator combined with this indicator then you might get more accurate results of bullishness and the bearishness of the market.