To attempt to explain it in the simplest terms, a continuation is a
representation, at a particular point in a program, of
everything the program is capable of doing subsequently. A
continuation is a potential that depends on initial conditions.
Rather than loop in a traditional way, it is possible to invoke
the same continuation recursively with different initial
conditions. One broad claim I have read is that
continuations, in a theoretical sense, are more fundamental and
underlie every other control structure. Don't worry if these
ideas cause your brain to melt; that is a normal reaction.
steelkiwi on 06 Oct 21Defining the travel and tourism industry is a challenge, since it includes other industries offering various services. In a broad sense, the industry is about transportation and logistics. It's also about catering to travelers' needs for lodging, attractions, and dining after they arrive at the destination. Since 2006, the travel industry has been one of the greatest contributors to global GDP, contributing around 2.9 trillion US dollars in 2019, which is 79% more than 13 years before.
