If anyone ever tries to tell you they can multi-task, this is what to say to them:
- Count out loud from 1-10 as quickly as you can
- Say the alphabet out loud as quickly as you can
- Do both together, so 1-A, 2-B, 3-C, 4D, 5E etc., as quickly as you can
This simple exercise nicely demonstrates how much harder the brain has to work to carry out two simple tasks simultaneously.
There are, however some tasks that can be done effectively whilst doing another task. They just have to be autonomous tasks that require little or no concentration. So you can walk and talk on the phone, for example, without any problems.
Whenever two tasks both require your concentration, you won’t complete them as effectively if you try to do them at the same time.