A few days ago, researchers invented a new material with superelasticity, which can be stretched from 1 inch to more than 100 inches. At the same time, the material can repair itself and can be controlled by voltage. Therefore, the researchers believe that the use of the material can be made into artificial muscles, replacing human muscles, bringing the gospel to those patients who can't restore function after muscle damage. Which of the following, if true, does not support the researcher's point of view? ['The artificial muscle made of this material can immediately start the repair mechanism after being damaged or injured, and it will recover faster than normal muscles.', 'The material will expand or contract under electrical stimulation, has good flexibility, and is very close to normal muscles.', 'At present, the artificial muscle developed by this material does not fit well with human nerves, and cannot achieve precise grasping of objects and other actions.', 'If the general material is damaged, it needs to be restored by solvent repair or thermal repair, and the material can recover by itself at room temperature.']