4.15/2—— DOT Polkadot's JAM upgrade brings a new round of narrative: any web2 developer can develop and run their applications on JAM using any programming language. 1) At present, it can be seen that the liquidity of the range L has been plundered here. On a daily basis, it is certain that we need to break through 4.8 to form a structural damage MSB and then step back to buy. After all, it is still a downward structure at present. 2) At the hourly level, we are building a range oscillation here, as the MSB is currently fluctuating and rising. We can consider buying at the OB position, which is around 3.5, with a target of 4 for now.