Never…

In Kendo* blocking is permitted but frowned upon.

The unwritten rule is that instead of blocking, you should rather be seeking opportunities to attack.

Blocking will only get you so far and most probably make you vulnerable to an attack.

Blocking is not a worthwhile strategy.

And speaking of strategy.

I have a ​new Keynote out​ (see what I did there),

Recently I've been asked more and more to help guide and facilitate the creation of differentiation strategies, hence the birth of the keynote.

Go take a ​look​. :)

pierre

*If you're new to the letter; my son, Luther, and I participate in the 'modern' Japanese Martial Art of ​Kendo​. Kendo is fighting with bamboo swords and getting to wear cool gear.