summed up here:
https://www.washingtonpost.com/news/morning-mix/wp/2015/11/05/ben-carson-believes-joseph-built-egypts-pyramids-to-store-grain-and-it-just-may-get-him-some-votes/

“My own personal theory is that Joseph built the pyramids to store grain,” Carson said in a 1998 commencement speech at Andrews University, unearthed by BuzzFeed. “Now all the archaeologists think that they were made for the pharaohs’ graves. But, you know, it would have to be something awfully big — when you stop and think about it, and I don’t think it’d just disappear over the course of time — to store that much grain.”

Social media quickly overflowed with scorn. Critics — and not just archaeologists — pointed to well-documented evidence that the structures were built as tombs, not granaries. Photos of pyramid burial vaults circulated on Twitter. Soon, Carson’s comments had become a meme with references to the food pyramid and “Stargate.”

And no one has ever demonstrated one species changing to another species,” said Dr. Carson. “This should be, if it’s true, a continual evolving. So we should be able to find intermediate species at any given point in time. We should be able to find how they line up.”

He continued, “Darwin said his whole theory depended on the fossil remains. He said we should be able to line up from a single-cell organism to man, several miles long and just walk right down the fossil trail and see how everything evolved.”

“He [Darwin] said the only reason they didn’t have the fossils was because they were not geologically sophisticated enough, but that we would be in 50 to 100 years,” said Dr. Carson. Well, that was 150 years ago. We still haven’t found them. Where are they? Where are the fossil remains?”

Carson continued, “When you ask the evolutionists about that, they say, ‘Uh, I don’t know where they are, they’re somewhere, they are, we just haven’t found them yet.’ That’s a pretty lame excuse, to be honest with you.”

Earlier in his remarks, Dr. Carson said, “Many people don’t know this but Charles Darwin actually started out in the seminary to become a man of the cloth. He had some experiences with God that didn’t go his way, like his 10-year-old daughter who died of pneumonia despite his pleas.