Re: Capabilities, Anybody?

I have been in CPU design for a very long time. I did a HS level design (calculator) in 1968 3 years before the Bomar Brain, did
a #60 design in college as a Jr, and started doing professional
designs (Mc 88100) in 1983.
With all this background and long term in this career, I can say
without a trace of doubt, that I am not <yet> smart enough to do
a capabilities ISA/system and get it out the door without errors.
On the other hand, My 66000 Architecture is immune to most attack
strategies now in vogue:: Return Oriented Programming, RowHammer,
Spectré, GOT overwrites, Buffer Overflows,... All without having
any semblance of capabilities; and all without any performance
degradations other than typical cache and TLB effects.