To accurately predict the number of AR glasses that will be shipped by 2031, a thorough understanding of technological and market trends is essential. However, for the sake of estimation, we can assume that AR glasses may experience a similar adoption trajectory as smartphones. It took smartphones roughly 15 years to reach an 80% adoption rate in developed nations. If AR glasses follow a comparable trend—and considering they have already been available for a few years—we can anticipate significant market penetration by 2031. To determine a specific figure, I would take into account the populations of developed countries along with rapidly growing markets like India and China, which are emerging as major tech hubs. By estimating that 60% of this combined population could become users, we obtain a potential user estimate. Additionally, it's important to consider advancements in technology, pricing strategies, and the global economic landscape when finalizing our estimate.