Not at all! If handwriting determined intelligence, then doctors would be the undisputed geniuses of the universe because their prescriptions look like ancient hieroglyphics written during an earthquake. Meanwhile, the neatest writers in class would be crowned Nobel Prize winners just for having calligraphy skills.
In reality, handwriting only proves one thing: whether you were patient enough to write slowly or in a hurry to finish before the pen ran out of ink. So if someone’s letters look like spaghetti, don’t worry — they might still be solving quantum physics problems in their head while scribbling