The interaction of workers from different cultural backgrounds with the host population might increase productivity due to positive externalities like knowledge spillovers. This is only an advantage up to a certain degree. When the variety of backgrounds is too large, fractionalization may cause excessive transaction costs for communication, which may lower productivity. Diversity not only impacts the labour market, but may also affect the quality of life in a location. A tolerant native population may value a multicultural city or region because of an increase in the range of available goods and services. On the other hand, diversity could be perceived as an unattractive feature if natives perceive it as a distortion of what they consider to be their national identity. They might even discriminate against other ethnic groups and they might fear that social conflicts between different foreign nationalities are imported into their own neighbourhood.

We think we are shaping our buildings. But really, our buildings and development are also shaping us. One of the best examples of this is the oldest-known construction: the ornately carved rings of standing stones at Göbekli Tepe in Turkey. Before these ancestors got the idea to erect standing stones some 12,000 years ago, they were hunter-gatherers. It appears that the erection of the multiple rings of megalithic stones took so long, and so many successive generations, that these innovators were forced to settle down to complete the construction works. In the process, they became the first farming society on Earth. This is an early example of a society constructing something that ends up radically remaking the society itself. Things are not so different in our own time.

There is a reason the title "Monday Morning Quarterback" exists. Just read the comments on social media from fans discussing the weekend's games, and you quickly see how many people believe they could play, coach, and manage sport teams more successfully than those on the field. This goes for the boardroom as well. Students and professionals with years of training and specialized degrees in sport business may also find themselves being given advice on how to do their jobs from friends, family, or even total strangers without any expertise. Executives in sport management have decades of knowledge and experience in their respective fields. However, many of them face criticism from fans and community members telling them how to run their business. Very few people tell their doctor how to perform surgery or their accountant how to prepare their taxes, but many people provide feedback on how sport organizations should be managed.