Still, many scientists have expressed concern that we do not yet have enough evidence to make any strong claims about the paleo diet’s health benefits, especially its long-term effects. In fact, in an article in response to the first review, authors Tanis R. Fenton and Carol J. Fenton, from the Cumming School of Medicine in Canada, wrote a letter to the editor in which they expressed their disappointment with the review. (5)

In William Calvin's The Ascent of Mind, Chapter 8 he discusses why he thinks that the Acheulian hand-ax (the oldest of the fancy stone tools of Homo erectus) was really a "killer frisbee." He argues that natural selection for throwing accuracy, which requires brain machinery, is the evolutionary scenario for bootstrapping higher intellectual functions. There are many more articles about evolution and human development throughout William's extensive site, though much of it these days is on climate change.
Two friends and I discussed the article, and then one proposed something unbelievable: "We should do Whole30 together." After considering what Philipps' had to say about it, I decided to give it a try. Then Health editor in chief Lori Leibovich asked me to document my Whole30 experience with daily video diaries on Health Instagram stories, and I knew there was no turning back. I was about to do my first diet ever.
The final workout of the 2019 Open featured a descending ladder of thrusters and chest-to-bar pull-ups, totaling 105 reps of each movement, with a 20-minute time cap. Last year, 18.5 presented athletes with an ascending ladder of the same two movements, so it’s no surprise that nearly the same percentage of Open participants decided to tackle the final Open workout as prescribed in 2018 and 2019. Read on to see how the community fared with this year's rep scheme.