The most important discovery of the 21st century (so far)?
I know this is one of those topics that's impossible to quantify but I am interested to hear peoples opinions (and hopefully gain some knowledge). No boundries, could be biological, astrological, archaeological - whatever discovery has grabbed your attention the most and helped us as a species gain a greater understanding of science or history.
I'm going to throw tiktaalik into the hat. To quote one article I read:
"Its discovery sheds light on a pivotal point in the history of life on Earth: when the very first fish ventured out onto land."
I have provided a link that describes its importance more accurately and in greater detail if you wish to discover more.