One nitpick: The author mentions a recent study claiming that cell phone use can cause bone spurs on an individual's head as an example of how quickly our bodies can change while we're still alive (vs what happens over generations and while decomposing):
> Changes in DNA can take generations to occur. By contrast, our skeletons can show widespread changes in as short as 10 years — from the bony protrusions now increasingly common on the back of our skulls (“text necks,” some are calling them) to our increasingly low bone density as we transition from manual labor to office work.
There have been serious deficiencies identified in the original study, from not actually measuring and providing data to back up their claims, studying the wrong thing, and did not have a random, representative sample. This doesn't detract from the main point of the article, but goes to show how easily an inaccurate study can permeate the societal knowledge without being corrected.
https://www.pbs.org/newshour/science/smartphones-arent-makin...
https://www.nbcnews.com/health/health-news/questions-raised-...