or other galaxies would fall apart they would they are rotating too quickly and then the idea was maybe all us he is AI civilizations and hourly out there they they just invisible because they are really efficient in using the energies at their own local systems and that's why they appear dark to us but this is awesome at a convincing explanation because then the question becomes why is there are there still any visible stars left in our own galaxy which also must have a lot of dark matter so that is also not a