Also, scuba divers must maintain neutral buoyancy during the dive. The current method is manual, making it a difficult skill to master, and creating a dangerous risk for new divers. I have developed a physics-based automatic buoyancy compensator for scuba divers which is a technological advance that replaces the current manual systems.
With these two innovations, you would not need a certification course to dive safely.
Finally, wetsuits are made with neoprene, an air-bubble infused rubber. These highly buoyant suits force the diver to wear extra weight during the dive. They also compress at depth so the diver must compensate for the changes in buoyancy with the buoyancy compensator device. I have developed a wetsuit material using silicone and an additive that is a better insulator than neoprene and neutrally buoyant.
Eventually, I would like to put all three of these together into a complete recreational diving system.
> With these two innovations, you would not need a certification course to dive safely.
There is a lot more to diver certification than learning how to control buoyancy and how to read your computer. You need to be comfortable breathing through your mouth, you have to know how to share air, you need to know how to configure and connect your equipment, what materials are appropriate for what kind of dive. You need experience with some trusted people. Most importantly, there's only one way to learn that spit and baby shampoo are the only useful defoggers for your goggles.
I do take issue with your assertion that certifications can be cast asunder. A lot of what's learnt is about safe diving (e.g. don't dive after you fly, safer dive profiles, what to expect at different depths wrt buoyancy changes, dci, getting narced, etc.) and what to do when technology fails.
Wetsuit buoyancy has a due to neoprene is pretty handy if you surface and are in distress. If you're towing an unconscious diver, for example, and are only relying on their bcd to keep them afloat their legs drag terribly (as is the case for dry suits) and it makes the rescue very very difficult. There are other safety advantages too - it's not clear to me why getting rid of buoyancy is a great idea.
Awesome. The wetsuit might also be used by people with neoprene allergy. I have been using a suit from Fourth Element which does not trigger any allergies but doesn't keep me very warm either.