There is no contemporaneous evidence that Mohammed ever existed. Plenty of records on the Arab conquests of the 7th century. But nothing about Mo himself until 60-80 years after he supposedly transitioned to Muslim paradise.
“But nothing about Mo himself until 60-80 years after he supposedly transitioned to Muslim paradise.”
As I understood the video, it’s much worse than that. Something like 400 to 800 years after he died.