colonoscopy

I am a huge fan of The Fourth Turning, a consideration of whether there is a cycle to history – are our times linear, circular, or, as they claim, spiral?
Hardly a day passes without a report of some new, startling application of Artificial Intelligence.
Unlike politics, colonoscopies usually make for a safe and tasteful subject at dinner parties (1). 
If you're lucky enough to have died at age 49, there is no need to read this. But if you reach 50, welcome to the beginning of old age, where icky things start to happen to you.
If you are over the age of 50, your doctor has most likely advised you to get a colonoscopy- the gold standard procedure for early detection and removal of growths called polyps, that can potentially turn into deadly colorectal cancer (CRC). 
We've all been regaled doctors, the public, everyone with advice about getting tested to "pre