What criteria do you use when buying and selling? Let's share some tips and expertise.
For me, the three most significant factors are as follows:
1. Bitcoin halving.
2. A decrease in currency value due to economic downturns.
3. Sustained participation and growth of investors.
Therefore, I make a continuous effort to stay updated with all the news to track numbers 2 and 3 consistently.
Personally, I might now buy more bitcoin and some altcoins because I am motivated by the bitcoin halving that is right around the corner. And the other encouragement is the same as point number 3 that you mentioned. But for number 2 I probably didn't think about that one. At least for now. But I don't know later. For purchases in altcoins, I personally decided to buy when I saw that the dev of the project was a fairly well-known person and the team continued to be active and the project continued to progress according to the roadmap. And there are large investors who also participate in funding. This is what made me decide to choose an altcoin to buy.