Alas, there's really not much technology to discuss
For things like BTC and ETH, which have financial and political significance, we need to look at economic trends
For most coins, we need to see what the whales think; if there are more long positions, they'll dump, if there are more short positions, they'll pump. All your positions are transparent, it's not much different from offline gambling
Especially for coins promoted by BN, 90% of the chips are in their hands, focusing on ratio contracts. 😋