# Comment on ‘The Aestivation Hypothesis for Resolving Fermi’s Paradox’

@article{Bennett2019CommentO, title={Comment on ‘The Aestivation Hypothesis for Resolving Fermi’s Paradox’}, author={Charles H. Bennett and Robin D. Hanson and C. Jess Riedel}, journal={Foundations of Physics}, year={2019} }

In their article, ‘That is not dead which can eternal lie: the aestivation hypothesis for resolving Fermi’s paradox’, Sandberg et al. try to explain the Fermi paradox (we see no aliens) by claiming that Landauer’s principle implies that a civilization can in principle perform far more (
$${\sim } 10^{30}$$
times more) irreversible logical operations (e.g., error-correcting bit erasures) if it conserves its resources until the distant future when the cosmic background temperature is very low… Expand

#### 3 Citations

Limits of Detecting Extraterrestrial Civilizations

- Computer Science, Physics
- ArXiv
- 2021

This work views SETI as a detection problem— a yes or no answer to the question ‘was an extraterrestrially-engineered process detected from a given spacetime region?’ and presents the general optimization problem for constructing the optimal decision function for given ETI processes ( processes engineered by ETI) that minimizes false negatives while guaranteeing a chosen threshold of false positives. Expand

Interstellar Communication Network. I. Overview and Assumptions

- Physics
- 2019

It has recently been suggested in this journal by Benford (2019) that "Lurkers" in the form of interstellar exploration probes could be present in the solar system. Similarly, extraterrestrial… Expand

The Edges of Our Universe

- Physics
- 2021

This paper explores the fundamental causal limits on how much of the universe we can observe or affect. It distinguishes four principal regions: the affectable universe, the observable universe, the… Expand

#### References

SHOWING 1-7 OF 7 REFERENCES

That is not dead which can eternal lie: the aestivation hypothesis for resolving Fermi's paradox

- Physics
- 2016

If a civilization wants to maximize computation it appears rational to aestivate until the far future in order to exploit the low temperature environment: this can produce a $10^{30}$ multiplier of… Expand

The thermodynamics of computation—a review

- Physics
- 1982

Computers may be thought of as engines for transforming free energy into waste heat and mathematical work. Existing electronic computers dissipate energy vastly in excess of the mean thermal… Expand

Logical reversibility of computation

- Computer Science
- 1973

This result makes plausible the existence of thermodynamically reversible computers which could perform useful computations at useful speed while dissipating considerably less than kT of energy per logical step. Expand

Evolution of the cosmic microwave background

- Physics
- 2007

We discuss the time dependence and future of the cosmic microwave background (CMB) in the context of the standard cosmological model, in which we are now entering a state of endless accelerated… Expand

Particle Data Group), “Review of Particle Physics

- Physical Review D
- 2018

- J. Br. Interplanet. Soc.
- 2016