I see that the price of $BTC went from $6300 to $6600 very fast. I'm wondering why that happened and if that's a bullish sign.

Since we did not go under $5800, it feels like the bearish market is starting to run out. If we continue to hold at these levels, is the bullish market coming sooner and faster than expected?

Also, I wanted to ask how Bitcoin Future Contracts work and if there is a possible relationship with the price jump. From what I understand, people agree on Bitcoin future contracts by agreeing on a price and time to sell BTC for? Is that correct? Or could someone give a short explanation on how they work and how they can affect the price?