Is it possible for you to somehow quantify traffic originating from AdNauseum? If so, how?

Could you link some of those studies? I’d be interested to read more about that

But that study was done on people aged 65+ for 11 weeks? I mean, sure, they didn’t measure any significant changes to the brain, but that doesn’t preclude changes forever. 11 weeks is not long to practice a language

Both - they get donations and are funded by NLnet’s NGI0 Discovery Fund