It probably isn&#x27;t. In fact it almost definitely isn&#x27;t (there was some work which showed palladium matrices should accelerate beta-decay processes a little).<p>But there&#x27;s no model which supports any of the proposed mechanisms for cold fusion currently put forward as possibly workable devices - i.e. it&#x27;s not theoretically possible, and there&#x27;s no solid path to show that it might be.