Damn. That's a pretty serious crack!
My last serious crash was at about 23 MPH ... but you had to really look closely to see how the helmet cracked to absorb the energy. Yours must have been a lot more violent. I don't even want to think about that.
My mom and sister came to visit me in the hospital, and one quipped to the other:
"Well, maybe this will finally teach him a lesson and he'll stop riding that silly bike."
My wife's response was classic:
"If you really think that, you don't know him very well."