Even in the source it says he was against such ideas. > Leonardo da Vinci made a number of drawings of devices he hoped would make free energy. Leonardo da Vin

Even in the source it says he was against such ideas. > Leonardo da Vinci made a number of drawings of devices he hoped would make free energy. Leonardo da Vinci was generally against such devices, but drew and examined numerous overbalanced wheels Just drawing some stuff that looks like perpetual machine isn't the same as actually believing in it. In fact this is how science should work. Even if something has a small chance to be correct try that and think about it. Einstein didn't believed in black holes but thought about breakdown of his equations.