In one piece when a paramecia user awakens their devil fruit, it usually gives them the ability to affect the environment not just themselves. For example the string string fruit when awakened lets you turn your surroundings into string which you can then control. For this theory to work you have to assume that an awakened ton ton user has the ability to change the wait of stuff that they touch. For example if they touch an elephant that was about to step on them, they can make it the wait of a feather and not get smashed. For this theory to work you also have to know that the strength of gravity depends on the mass(weight) of the object. For example earth ways more than the moon, that's why there is more gravity on earth. So imagine that an awakened ton ton fruit user touches the ground and doubles the weight of Earth, which then would double the gravity on Earth. This definitely could work, but it would be bad. If Earth had double gravity, everything orbiting it(moon, space stations, satellites, etc) would all slowly but surely crash into to the Earth. Some weaker buildings would squish down to Earth. Humans would feel something pushing down on them, but nothing will really happen in the short term, but in the long term there spines would break under the wait. This would be bad but not the worst. Now imagine this, the ton ton fruit user decides to multiply the mass of the earth 2,000 times greater. That would instantly squash everything on the surface of the earth. The things orbiting earth and relatively nearby asteroids would zoom onto the Earth at high speeds. The moon crashing into the earth at that speed is worse then the asteroid that killed the dinosaurs. We have much bigger problems to worry then that because the Earth would be so much more massive, that the gravity pulling us toward the sun and the force going around the sun would be way off balance. If the balance is broken, we smash into the sun and our planet would torn into a part of the sun. If you don't understand what that means, that means we are all dead. If you wan to go even further, imagine making the Earth 2000 times more massive then the sun. That would make the sun and all the planets in our solar system come crashing into earth. Again we die and so do all the planets in our solar system. But I am not done, imagine making the Earth 2000 time more massive then the massive black hole in the middle of our galaxy, the Milky Way. That would make all the solar systems in our galaxy all smash into the earth. Other nearby galaxies might crash in, or they would start to orbit. Now lets take a step back, most anime power scalers say "Naruto's power is planetary", meaning he can destroy planets. Now, there are at least 100 billion planets in the Milky Way. So the ton ton fruit user would be more then planetary, they would be "galaxary". I only went this far, but you can go as far as you want, you could go so far as to making the ton ton fruit "universary". That's why I believe that the awakened ton ton fruit is the most op and underrated fruit in One Piece.