In February I published a personal history of the travel and tourism industry over the last fabulous 60 years. it was a picture of a world we have now left.
After a period of excruciating, devastating change, while powerful forces work to recalibrate the global political and economic situation, - we will enter a new world.
Our base market of international tourists will not be that of 2019 - some 1.5 billion passengers creating a $1.6 trillion global economy. It will be that of 2020 - some 300 million passengers creating a $400 billion economy.
Not only is the market much smaller and will be able to support many fewer people than in 2019 - but it will be very different too.
During 2020, so far, governments have flexed their muscles in determining not only from which countries they will accept visitors but also which countries their citizens can visit. This is unlikely to be a short term thing.
Moreover pretty much every major global institution has now recognised and reacted to the financial and political implications of climate change. Covid has made the world change and imminent climate change will make sure that it will never return to how it was.
Working from home is now, and will stay, the norm - the benefits of time and money, stress and global warming are incontestable. It looks as though cities have begun their slide into relative obsolescence and country living the attainable dream for all.
So what does all this mean for the global travel and tourism industry - the market we all work in?
The bizarre fact is that all of this had to happen in the face of climate change. It was thought that it would happen gradually as part of a consensual process. Now, to avoid global disaster, there is no choice.
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Valere Tjolle is the travel and tourism insider. An entrepreneur, consultant, developer and journalist, he has been in at the beginning of almost every tourism development for the last sixty years. There is no one better placed to expose the seedy side of tourism nor its enormous opportunities to unite people across the globe.