This is to announce a $250 prize for [spotchecking](https://www.lesswrong.com/tag/epistemic-spot-check#:~:text=Epistemic%20Spot%20Checks%20is%20a,has%20to%20give%20the%20author. "‌") or otherwise indepth reviewing Jacob Cannell's technical claims concerning thermodynamic & physical limits on computations and the claim of biological efficiency of the brain in his post [Brain Efficiency: Much More Than You Wanted To Know](https://www.lesswrong.com/posts/xwBuoE9p8GE7RAuhd/brain-efficiency-much-more-than-you-wanted-to-know "‌")

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<p>This is to announce a $250 prize for <a title="‌" href="https://www.lesswrong.com/tag/epistemic-spot-check#:~:text=Epistemic%20Spot%20Checks%20is%20a,has%20to%20give%20the%20author.">spotchecking</a> or otherwise indepth reviewing Jacob Cannell's technical claims concerning thermodynamic &amp; physical limits on computations and the claim of biological efficiency of the brain in his post <a title="‌" href="https://www.lesswrong.com/posts/xwBuoE9p8GE7RAuhd/brain-efficiency-much-more-than-you-wanted-to-know">Brain Efficiency: Much More Than You Wanted To Know</a></p>
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$250: Checking Jake Cannell's Brain Efficiency