Voted for Marianne Williamson who had already withdrawn because A) she was the only other choice on the ballot and B) She is actually great in interviews. Dont agree with some of her conclusions but you can tell she is studied on political theory..
Dont think that really counts. The primary was yet another illusion of choice by the DNC who has proven they will make backdoor moves to nominate whoever they want since the days of Debbie Wasserman shultz and hillary
I have zero knowledge related to this but wild speculation, could the core be leaking it into the mantle and up? Iirc its iron nickel and oxygen