Originally the term multi-tasking had emerged in the 60s and was used to describe computers' ability to perform multiple tasks simultaneously because it can, as it is a machine and not a human.
It is hard to tell at what moment it all started, but with the computer's influence, the term multi-tasking was adopted by human resources and recruiters to describe human functions, completely dismissing the fact that the human brain is designed differently and by no means can it replicate computer capabilities.
When we want to describe a person who is effective in performing multiple tasks, it would be more honest to say that they can rapidly switch between their tasks and avoid errors. Multi-tasking is, therefore, not the same as rapid task switching, and the latter has its own implications. In order to be an effective "rapid task switcher", one must prioritize properly and minimize external distractions.
It appears that due to the machine and automation-driven environments that we are constantly exposed to and are an indivisible part of, our perception of what is anatomically possible and what's not is distorted. As a result of this serious distortion, oftentimes working adults are expected to demonstrate skills and mental and physical abilities that are incompatible with their own anatomy.
When our body shows signs of exhaustion and the mind loses its capacity to function effectively simply because it needs some rest, good nutrition, and a change of activity, instead of accommodating those basic needs, we choose to be dismissive of them, playing along with the established professional norms and demands. The management supports these destructive trends and praises us for overperforming and overworking.
Nowadays, it is nearly impossible to meet an employer who genuinely pays attention to a real work-life balance, demonstrating courtesy and asking a colleague: "How are you feeling today?", "How was your ride from home to work in this weather?", "Are you thirsty/hungry?", or, when inviting you to his office for a brief meeting: "Please have a seat", "Make yourself comfortable", and: "Are you thirsty? - have some water".
For many employers and business people, such courtesies may sound wild, but these small and timely gestures can go a long way in making a difference: our interactions, and as a result, life quality, will improve dramatically.
And what about self-care? How can working, career-driven adults betray themselves on a daily basis, systematically depriving their bodies of a good, nutritional breakfast or lunch because they are always in a hurry? How can they allow their brain cells to explode from overthinking and stressing without mental breaks?
It is simply destructive to regularly compare ourselves to machines and make it a goal to function like them to meet the perceived social, professional, and economic demands. We will never become machines even if we try very hard. The only logical outcome of such efforts is our eventual demise as a spiritual, sane, and healthy society.