Did this "expert" give you a palm reading too?
There are a significant number of people who are susceptible to suggestion and cold reading, weak minds play funny tricks when fed just the right amount of optimism as a form of escapism, it's simply a defence mechanism provided by the mind to protect the ego.

Arguing with an idiot is like playing chess with a pigeon, you know you can win but the pigeon will still kick away the pieces and strut around the board like he owns it.