@foobar_lv2 Thanks for the detail, I agree this is very helpful context.
Crypto applications are important, but do you think it should be a priority for general use? I expect there’s some high cost to pay, or every application would use crypto-secure PRNGs. Crypto-oriented users are likely to check details of the PRNG, while most users “just want some random numbers”. I’d think the best approach could be to have secure PRNGs available, but for the default to be faster, non-secure, but with good statistical properties. But then, that’s my application area so I do have some bias 
I’d be interested to hear anyone’s experience or opinions on PCG. On paper it seems the best of everything (save crypto). Are there reasons to prefer others over it?