Zoe Sugg

I'll post a video, and it might get 10,000 comments, and I'll scroll through and they'll all be lovely and nice - but then they'll be one saying, 'I hate you; I'm unsubscribing' and that's the one that sticks out and stays on your mind all day.

I'm not as tech savvy as some YouTubers, but I'm a lot better than my grandparents. Whenever I have a technical question, or something isn't working, I ask Google, and that usually throws up the answer.

I believe psychology has done very well in working out how to understand and treat disease. But I think that is literally half-baked. If all you do is work to fix problems, to alleviate suffering, then by definition you are working to get people to zero, to neutral.