Life in the 21th century has already been marked by a changing world in many aspects. The Internet has reached virtually the whole world, neoliberal marketing policies have become more aggressive than ever and alternative economies such as cryptocurrencies have emerged within the first quarter of this century. Adding to the equation the ever-increasing population of the world and the much increased connectedness of its residents, novel definitions of what have already been known have emerged, reflecting the changing life in our time.
