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This paper studies how analog and wave-based hardware can be kept stable as the number of components increases. It argues that parallel, component-level feedback can provide the information needed for control without increasing sequential acquisition depth. The proposed controller reaches the target tolerance in four to five acquisitions on the tested systems.

The paper also does a good job of being clear about what is simulated versus physically tested.

Major issues

• Most large scale results are based on simulations or modeled hardware rather than fabricated devices. Real hardware testing would make the claims stronger.

Minor issues

• Some of the assumptions behind the theoretical results, such as the drift model and component observability, are quite specific. A short example showing where these assumptions may not apply would make the scope clearer.

• The paper has a lot of technical detail, so a shorter overview of the main takeaway before the mathematical sections would make it easier to follow.

Competing interests

The author declares that they have no competing interests.

Use of Artificial Intelligence (AI)

The author declares that they did not use generative AI to come up with new ideas for their review.