Recognizing that other ideas might be for specific executions, such as FLEX in Max, this idea is simply:
Implement a solid solution for FLUIDS (liquids, flames, smoke, etc.) in Max, regardless of how specifically this is executed.
Max lacks a core feature that is present in Houdini, is present to varying degrees of success in other competitors, and in fact is present in the FREE BLENDER software.
For Max to not have this in the core means that it has decided not to play in the VFX space in any serious way, but it also means that other industries will miss out as Autodesk refuses to recognize that fluids are even important to some in ArchViz and other industries.
Specifying the exact product to be integrated, or the exact form of integration, may be too limiting. So this idea is simply to do SOMETHING in this space, rather than continuing to ignore the many users who want this.