What would happen if there was too much or too low gravity in our universe?

If gravity were too strong, it could cause celestial bodies to collapse into black holes, preventing the formation of stable orbits and potentially leading to a universe devoid of planets and life. Conversely, if gravity were too weak, galaxies and stars might not form properly, leading to a fragmented universe where matter is dispersed and unable to coalesce into the structures necessary for life. In either scenario, the conditions required for life as we know it would likely be impossible, fundamentally altering the nature of the universe.