Ethereum opened the weekly line near 1830, indicating there is still short-term demand above. 1853 and 1893 serve as effective resistance levels. If these two levels are not broken, it means there will be a second bottom test below, breaking 1600 but not breaking 1503. If it drops to 1500, the second bottom structure is destroyed, with 1383 as an effective support level. The 4-hour chart has also formed a W-bottom pattern, with a high of 2008 and a low of 1503. Now we need to see where the neckline stops to give a second bottom short. Heizi personally believes that both 1853 and 1893 are strong resistance levels and not easy to break. Therefore, if 1800 breaks but does not break 53 or 93, you must go short.