Sure, here is a possible description of a world where all the world's advanced technology is based on vacuum tubes:

The world is a technologically advanced one, but it is also a world of contrasts. On the one hand, there are computers and other devices that are incredibly powerful, even by our standards. On the other hand, these devices are also incredibly large and inefficient, requiring a lot of power to run.

This is because vacuum tubes are much larger and less efficient than transistors, which are the basis of most modern electronics. Vacuum tubes also generate a lot of heat, which can be a problem in hot climates.

As a result, the world is divided into two classes of people: the wealthy, who can afford to own large, powerful vacuum tube devices, and the poor, who have to make do with smaller, less powerful devices.

Another social oddity of this world is the way that people interact with technology. Because vacuum tubes are so large and fragile, they are often treated with a reverence that we reserve for religious objects. People are careful not to bump or jostle vacuum tube devices, and they often speak to them in a soothing voice.

This reverence for technology is reflected in the way that people dress. Many people wear clothing that is decorated with vacuum tube symbols, and there are even religious sects that worship vacuum tubes as gods.

Of course, this is just one possible description of a world where all the world's advanced technology is based on vacuum tubes. There are many other ways that this world could be imagined. The important thing is to be creative and to think outside the box.

I hope this helps!
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