You find this "highly unlikely" because you know nothing about this, and you believe the nonsense peddled on the internet by lunatic members of the death cult. If you would look at actual science you would see this is all nonsense.
I have noticed that Mark U does not respond to details on the science. It is frankly difficult to analyse, you can get many different numbers from the same data, and Mark U prefers to take without further questioning the death cult digests which when examined very flagrantly misuse the data (bad stats).
Still - he is in good company - alas...