Background: In "The Diamond Age," Neal Stephenson imagines a world where advanced nanotechnology has revolutionized the way consumer products are made and used. The novel features items that can self-assemble, change shape, or morph to serve different functions based on user needs, all driven by sophisticated nanotech. This question explores the likelihood of such transformative nanotechnology becoming common in consumer products by 2050.

Resolution Criteria:

1. Nanotech in Consumer Products: There must be evidence of widespread consumer products that utilize advanced nanotechnology to self-assemble, morph, or change their functionality based on user interaction.

2. Market Penetration: These nanotech-driven products should be commonly available in the market and used by at least 20% of households in at least three G20 countries.

3. Functionality and Adaptability: The products must demonstrate a high level of functionality and adaptability, similar to those described in "The Diamond Age."

4. Public Recognition: The existence and use of these nanotech consumer products must be well-recognized and reported in credible media outlets, industry reports, and by consumer technology analysts.

5. Affordability and Accessibility: The products should be accessible and affordable to a significant portion of the population, not limited to luxury or niche markets.

6. Documented Evidence: There should be documented evidence of the use and functionality of these products, such as academic research, patent filings, or demonstrable products in consumer tech expos.
   

End Point: December 31, 2050.