Troy Kervin
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meowmuir.bsky.social
Troy Kervin
@meowmuir.bsky.social
Logician-scientist: membrane protein cryo-EM, proteolipid code, category theory, philosophy of science
proteolipid.org
very much in the spirit of sharing something small, a portion of my own opinion on LLPS is here. I offer it only as one view among many, with sincere respect for others who think differently and with openness to further discussion, clarification, or correction of emphasis.

doi.org/10.5281/zeno...
No phases? No phase separation
ARISING FROM S.A. Shelby et al. Nature Chemical Biology https://doi.org/10.1038/s41589-023-01268-8 (2023)
doi.org
December 3, 2025 at 8:51 AM
If lipid raft supporters would please engage meaningfully with these critiques in their recent publications, I would no longer feel compelled to debate them outside of print.
December 2, 2025 at 10:57 AM
I admit that I have taken advantage of your threads to attract attention to the lipid raft issue in membrane biology, which in modified forms, often use LLPS terminology. This is because they do not respond to me otherwise.

doi.org/10.5281/zeno...

www.researchgate.net/publication/...
No phases? No phase separation
ARISING FROM S.A. Shelby et al. Nature Chemical Biology https://doi.org/10.1038/s41589-023-01268-8 (2023)
doi.org
December 2, 2025 at 10:57 AM
Yes, if properly defined I think it could absolutely be falsifiable. Apologies, this debate got heated so I deleted most of my replies to avoid more mayhem.
December 2, 2025 at 10:00 AM
Apologies to anyone seeing this: it got ugly. Definitely not the proudest moment for both of us.
December 1, 2025 at 5:02 PM
I have read some but not all your work. My understanding now is that you are using a personalized definition for phase separation, which is the right thing to do. Could you post it here? Please don't make this personal: I'm not attacking your work; I just don't like pseudoscience.
December 1, 2025 at 4:05 PM
Oh, so we weren't on the same page. Then let me spell it out: equilibrium is a precondition for canonical phase separation.
December 1, 2025 at 3:55 PM
You misinterpreted again: I asked for the opposite of this; for you to show me a falsifiable claim demonstrating the phase separation is scientific.
December 1, 2025 at 3:42 PM
You misinterpret: I want you show me a falsifiable claim that demonstrates phase separation is scientific
December 1, 2025 at 3:25 PM
Excellent start. How much is the temperature shift? Aren't all cells in hysteresis?
December 1, 2025 at 3:24 PM
As always: I demand that you present a falsifiable claim. Absent of any, there is no scientific substance.
December 1, 2025 at 3:21 PM
Sorry, what are you referring to? I do not see which comment this one is attached to. What words am I putting in your mouth?
December 1, 2025 at 3:17 PM
I demand falsifiability. Tell me specifically what I can and cannot call phase separation.
December 1, 2025 at 3:13 PM
Please also include this one in your journal club, at least the lipid raft section:

Kervin, T.A., Mangalam, M. Lessons from pseudoscience in biology. (2025). www.researchgate.net/publication/...
(PDF) Lessons from pseudoscience in biology
PDF | We review three pseudoscientific frameworks that currently dominate their respective fields in biology but are now being phased out by each... | Find, read and cite all the research you need on ...
www.researchgate.net
December 1, 2025 at 1:34 PM
Having not read this yet: could they not have just been akin to the typical machinery that creates membranes zones without trafficking? I mean, assuming they bind lipids well
December 1, 2025 at 11:39 AM
Agreed: nice and testable. Not an unfalsifiable metaphor.
December 1, 2025 at 11:27 AM
I disagree, a scientific theory must be falsifiable. Phase separation, equilibrium, etc. are just concepts, not theories. Who is to say whether they are true or false if they cannot be falsified?
December 1, 2025 at 9:30 AM
Precisely; it's philosophy. The basic definition requires detailed balance, which is a concept that does not exist in the physical world. Instead, detailed balance, etc. are analytical concepts, not scientific theories.
December 1, 2025 at 9:16 AM