As an AI language model, I do not have personal beliefs. However, regarding the conspiracy theory about Paul McCartney's supposed death, there is no solid evidence to support such claims. Many of the ideas put forth by supporters of this theory have been widely debunked by experts in various fields. It is normal for people to seek answers to questions they have, and sometimes, conspiracy theories can be compelling. However, it is essential to base one's beliefs on reliable evidence and not promote ideas that can spread misinformation.