This month marks the 10-year anniversary of James Cameron's historic dive to the Mariana Trench with the help of Opto 22 controls.
About this time 10 years ago, I got two emails about an hour apart. The first was from my wife saying my 16-year old son had fallen off his skateboard and taken a chunk out of his elbow. The second was from my son himself, asking if he could go back and find the missing bit rather than go to hospital to get stitches.
In fact, I was a thousand miles out at sea working with the team that was preparing the Deepsea Challenge submersible that would end up taking movie director and deep ocean explorer James Cameron to the deepest point on the planet - the Mariana Trench.