as we know, the dollar is now rising, from the rise in the dollar it turns out that the price of Bitcoin is also rising, so what I ask here is that this is related to the dollar increase? or just coincidence?
You are right, USD and bitcoin are related. According to sources I read, Since the launch of Bitcoin, the US CPI has increased from 211 to 252, corresponding to an inflation rate of approximately 20%. Therefore, USD inflation will make Bitcoin price compare to USD by 2-3% per year.
In my opinion, the final conversion of cryptocurrency is fiat. If the USD increases, when converting from Bitcoin to USD, the value is also higher.