[georgesimon]

Are those fifty Tom Scotts all competing with each other to become 'experts of the week' on the same topics in slightly different ways? (that's what my 5 or 6 Tom Scotts do)

I wish YouTube channels could be viable by following the Periodic Videos model - stick to a single domain but keep it fresh by improving on old content.

[graypegg]

Dr. Brady Haran really hit this perfect balance with his channels. Each one has a perfect niche.