We live in an age of wonders with technology and medical knowledge advancing at an unprecedented pace. To give you a sense of that, remember the worldwide sensation caused by the birth of the world's "test tube" baby. That 'baby" is turning 40.
Louise Joy Brown was born in the United Kingdom.
Nine months earlier, Louise's mother Lesley underwent an experimental procedure trialed by the late Patrick Steptoe, Robert Edwards and Jean Purdy, which became known as in vitro fertilization or IVF.
Today, millions of babies have been born worldwide using IVF and other advanced reproductive technologies.
It's hard to fathom now - but many scientists at the time were doubtful that the procedure would EVER work.
That got me to thinking: what do YOU think is the biggest advance in technology or medicine that you've seen in your lifetime?
It's hard for me to boil it down to one: as a person who has had family members stricken with cancer, I am amazed at the constant advances in treatment.
As for technology, that ubiquitous smart phone has changed all of our lives, hasn't it? Remember having a big GPS screen mounted on the dashboard of your car? Now, it's "Hey, Siri - get me directions to the newest pizza place!"