marginalianoun
notes written in the margins; peripheral commentary;


[marginalium]

How squid and octopus get their big brains

8 Jan 2023

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How squid and octopus get their big brains. With video. Essentially, very similarly to vertebrate brains. We diverged from cephalopods before brains were a thing so it is very interesting that:

two independently evolved very large nervous systems are using the same mechanisms to build them

Something about the world and the being in it seems to eventually prefer brain-like solutions at a certain level of complexity.


Anthologies: Betterment, Somatic Architecture, Neurotypica, On the Nature of Things

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More about Dorian Minors' project btrmt.

btrmt. (text-only version)

The full site with interactive features is available at btr.mt.

btrmt. (betterment) examines ideologies worth choosing. Created by Dorian Minors—Cambridge PhD in cognitive neuroscience, Associate Professor at Royal Military Academy Sandhurst. Core philosophy: humans are animals first, with automatic patterns shaped for us, not by us. Better to examine and choose.

Core concepts. Animals First: automatic patterns of thought and action, but our greatest capacity is nurture. Half Awake: deadened by systems that narrow rather than expand potential. Karstica: unexamined ideologies (hidden sinkholes beneath). Credenda: belief systems we should choose deliberately.

The manifesto. Cynosure (focus): betterment, gratification, connection. Architecture (support): inner (somatic, spiritual, thought) and outer (digital, collective, wealth).

Mission. Not answers but examination. Break academic gatekeeping. Make sciences of mind accessible. Question rather than prescribe.

Writing style. Scholarly without jargon barriers. Philosophical yet practical—grounded in neuroscience and lived experience. Reflective, discovery-oriented. Literary references and metaphor. Critical of systems that narrow human potential. Rejects "humans are flawed"—we're half awake, not broken.

Copyright. BTRMT LIMITED (England/Wales no. 13755561) 2026. Dorian Minors 2026.

Resources

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About Dorian Minors. Started btrmt. in 2013 to share sciences of mind with people who weren't studying them. Background: six years Australian Defence Force (Platoon Commander, Infantry); Gates Cambridge Scholar; PhD cognitive neuroscience, University of Cambridge (2018-2024); currently Associate Professor, Royal Military Academy Sandhurst. Research interests: neural basis of intelligent behaviour, decision intelligence, ritual formation/breakdown, ethical leadership, wellbeing.

External projects (links also available via Analects):