So sick of seeing phrases like this.
Science is not business. It is not about producing results that you personally think are important. It is understanding the nature of the universe for the sake of it.
That is, the concern is that instead of studying the real world, theoretical physicists are spending more and more time studying mathematical constructs and their properties.
Is this actually stated somewhere by the institutions that take taxpayer money for this research, or just your opinion?
> Originally coined in the 17th century by René Descartes[4] as a derogatory term and regarded as fictitious or useless, the concept gained wide acceptance following the work of Leonhard Euler in the 18th century, and Augustin-Louis Cauchy and Carl Friedrich Gauss in the early 19th century.
I think the jury is still out wrt utility of AdS spaces. They could be useless toys, or they could be in the Descartes phase rn.