If the full mass of the car had impacted the Halo loading through the primary structure, the impact energy would have been approximately 30kJ (based on 840kg at 30km/h). Such energy would have devastating consequences if it loaded directly onto the driver. However, the Halo would not be able to absorb all this energy without significant deformation and probable failure.

While I fully agree that a head protection system is needed, the FIA just sticking the halo on every single car while not going ahead with trying anything else isn't the way to go IMO. I think IndyCar is going in the right direction with the aeroscreen, still wish more groups in general would at least do some tests on other devices and designs for single seaters. Personally always have wanted to see the aeroscreen mixed in with a expanded roll hoop (i.e. like a NHRA top fuel dragster roll cage) or a Supermodified style roll cage.

Look at the new Formula E car, that's the way the sport is heading

Halo is just the start, the wheels are being covered too, then eventually the entire cockpit will be closed.

Open wheel racing is over.

Maybe the FIA want to gradually morph F1 into a class in WEC and let Formula E lead the charge for whatever they want to call the top of the ladder for what is now open wheel racing

Didn't a dragster driver die because of flailing rubber from a tyre blow out?