Some studies estimate a "market opportunity of over one trillion billion dollars in terms of annual revenues” [[[Grayscale Research (2021), “The Metaverse. Web 3.0 Virtual Cloud Economies”.]]], while others go further, estimating that the "total addressable market for the Metaverse could be between 8 and 13 trillion dollars by 2030, with total Metaverse users [...] numbering around five billion” [[[Cities (2022), “Metaverse and Money. Decrypting the Future”, Citi GPS: Global Perspectives & Solutions.]]]. Behind these figures there are, above all, very different methods of calculation and scopes of analysis which call for the utmost caution when they are quoted or even manipulated.

In short, there is a strong probability that the internet will see economic growth over the next few years, an increase in sales of virtual/augmented/mixed reality headsets, and more and more immersive experiences supporting the development of a specific economy. But comparing figures, as long as they don't relate to the same objects, is of little interest.