The technical definition of brain drain is the migration of skilled (either through training or God given) and talented individuals in search of higher wages and or living standards outside their native country. Skilled and talented individuals would include engineers, accountants, economists, lawyers, nurses, teachers, scientists, doctors, pharmacists and physiotherapists. This list is by no means exhaustive- there are other professions and trades that not been mentioned.
Getting and educations or training in a trade or skill is, to paraphrase Martin Luther King, like a promissory note, a cheque that one would want to cash at the end of one's training or education. Now in banana republics and basket cases of much of sub-Saharan Africa including Zimbabwe once you have acquired that education and you attempt to cash that cheque the note cames back marked "insufficient funds". Thus you cannot cash that cheque and you are condemned to a life of squalor and poverty.
Is there such a thing a brain drain koMthwakazi - without a doubt- in this august forum there are many here whose professions are amongst the list above. A significant proportion of those were educated kwaMgodoyi others yet still have taken advantage of opportunities hithero unavailable to them in lands where they now lay their hats.
Who benefits from this brain drain- it is primarily the nations in which the sons and daughters of Mthwakazi have migrated to. Yes there are remittances back to the motherland and in that respect there are rewards but on the balance of probability the motherland looses more than what it gains in money, if there are no doctors who will tend to the sick? If there are not enough teachers who will teach, nurture and mentor the children who, after all are the future, if all the aircraft engineers have emigrated who will repair the aircraft and most importantly who wil ride in those planes? Moreover remittances to Mgodoyiland minght have well stopped the economy from completely collapsing but they (the remittances) have not lead to wealth creation- kwaMgodoyi- there has been no significant job creation and thus there is little if any contribution to development ( including building capacity and infrastructure.
That said another element of the exodus from Zimbabwe is it is not just the skilled and the talented that have up and left. Ordinary folks, honest Joes who without neccessarily having any skills or training ot talents have also found that they cannot stand the heat in that kitchen. and who can blame them - the Soul Brothers have a song
Ngubani ongameli 'ndlala . This type of migration is often referred to as the
brawn drain. In the melting pot that is
Inkundla we see this type here - idonsa nge farasi complicating debates and muddying the waters with their often wild, weird and wonderful ideas. It is this type of migration that is anathema to the political classes of many of the Western countries - hence the introductions of point systems of migration in the UK and the long operation of such systems (Australia, Canada and others). all these systems are designed to keep the "great unwashed" from the shores of the "heavens on earth".