yes, the distraction is real. How many times i was busy with my day job on some task when for some reason i had to wait for something (coworker reply, build to complete, approval to be granted) and automatically opened HN on in a new tab... 10 minutes of blackout and i'm on some random wikipedia page for no obvious reason related to my day job task... And i'm 40+ year old adult. Im scared to think what this level of distraction means for undeveloped brain.