In principle, this is the case, but the condition is that the bones of the ancestors are still there. Once they turn into ashes, they will have no impact. At the same time, the impact of each acupuncture point "Grave" on future generations is also related to its location. Depending on the location, some can affect it for 10 years, and some can affect it for a hundred years. Generally, the larger the Feng Shui situation, the longer the influence period. If people are cremated now, there will be no impact on future generations