To quote from Tom Clancy (Hunt for Red Octover IIRC), it's possible to both 
increase security and increase access as a marine at a gate beats a padlock for 
both

In computer security especially there are many examples of things that increase 
security while decreasing error, increasing availablity, and (overall) 
decreasing cost.

sometimes it's 'pick 2', but all to frequently people actually opt for 'none of 
the above' (i.e. sub-optimal in all areas)

David Lang

On Mon, 8 Aug 2022, David P. Reed via Starlink wrote:

> 2) I absolutely hate folks who invent "theorems" that say you can have "any two of three" properties. It's become popular in computer systems research, but it actually creates a huge intellectual mess.
> The CAP theorem, for example has some very peculiar definitions in order to make C, A, and P "independent" axes. Of course they are NOT independent in engineering practice. In fact, they aren't even "binary" - there's no "yes" or "no" to C, A or P - they are not even spectra that map to some increasing sequence.
> Yes, you can't always get what you want. But you can almost always get what you need, and that is never a specific two out of three.
> Especially not in queue management algorithms.
> Goddamn cutesy anti-intellectuals.