Thiel: Google More Dominant Than Facebook, Apple

The video discusses whether tech giants like Facebook, Apple, and Amazon could become too powerful and stifle innovation. The speaker believes that while these companies are dominant now, they won't be forever. Google is highlighted as a company with significant potential due to its strong search monopoly and efforts to expand into other areas.

How does the teacher view the relationship between innovation and the dominance of major tech companies?

What challenges does the teacher mention regarding predicting the future dominance of these companies?