Search and rescue operation is still under way to find the $250,000 per person Titanic tourist submersible. It has been missing for nearly two days in the Atlantic Ocean with five people aboard who are believed to have around 40 hours of oxygen left.

I've seen theories floated about such as a rapid implosion or that power went out and they are trapped at the bottom of the ocean. Others have suggested that it is a grift, distraction or sabotage to disappear someone. So far there has been no sign of the sub.

I find strange that a submersible designed to dive so deep would be controlled by a PlayStation controller and have all of the vital internal components hidden - also that there was no tether attached to it or sonar just in case such an event occurred. I'm no Sub expert so I could be way off.

Curious to know others thoughts on the matter.