What makes an idea worth blogging?

In his short reflection on the validity of writing a blog in 2017, Colin Walker gives us his conclusion as to why all ideas should be published on a blog:

Ideas are special, ideas are the lifeblood of our existence and need to be shared.

[…] They are shared for the record and for posterity rather than being ignored and forgotten.

[…]

Sharing ideas with a prospective audience opens them up to examination, makes you question them in your own mind and establish a degree of clarity before committing them to the page.

(via Twan van Elk)