There are many persons of Guyanese heritage who achieved excellence in their respective fields of study. However this does nothing for the people of Guyana who continue to suffer under the leadership of jackass Granger. I doubt that Guyanese still in Guyana are sitting around feeling vast pride at the expats achievements, they are more concerned about the state of the country under jackass Granger.
The fact that Guyanese can achieve so much outside of Guyana sadly reflects on the successive governments who drove them out in the first place. There was a massive brain drain during the PNC era, during PPP time this continued due to lack of opportunity but those leaving were mostly the uneducated like lilmohan et al.