A humorous look at the dependency chain in the tech industry, showing how each company relies on the others in the production chain:

1. A startup can be thought of as just a “wrapper” around OpenAI, meaning it builds on OpenAI’s technologies.

2. OpenAI relies heavily on NVIDIA for the GPUs that power its AI models.

3. NVIDIA relies on TSMC (Taiwan Semiconductor Manufacturing Company) to manufacture advanced chips.

4. TSMC needs ASML to provide the lithography equipment needed to manufacture chips.

5. ASML works closely with Zeiss, which provides precision optics for lithography machines.

6. And finally, Zeiss needs high-quality sand to make glass for their optical products, humorously implying that the whole chain ultimately depends on the availability of sand.

This highlights the interconnectedness of modern tech companies and how advances often build on each other's innovations.