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Mark Schira

@mschira

Neuroscientist interested in highres MRI, visual system, brain anatomy and what the universal transfer functions of a) cortex, b) cerebellum and c) the hippocampus might be.

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15.11.2024
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Latest posts by Mark Schira @mschira

But that is nothing unusual. I goes on houses, factories and other spaces everywhere. I am sometimes wondering what is the hold up with going on every supermarket parking lot, but oh well.

So why is there so much in the Netherlands? Despite the weather?

12.03.2026 03:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

So why is there so much installed solar in the Netherlands? The profitability should arguable less great in the Netherlands than some other place. Less space, less sun especially in winter when needed.
Most parts of Australia have the luck that electricity is need for cooling in summer not winter.

12.03.2026 00:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0

Not sure what you are trying to say here? Looks like The Netherlands and Australia has a very similar amount of solar W per capita?
What does the p mean in Wp?
Also I guess 1kW of panels in the Netherland probably produce less than 1kW in Australia - of course depending on the location in Australia.

11.03.2026 20:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

And I am saying that while watching the morning sun producing 2kW of electricity at 8:30 am, where about 1kW is used by a heat pump to reheat the water from my shower.

10.03.2026 21:59 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I am not sure how a plot of renewable energy use justifies that using gas to fire heat pumps is better than replacing gas.

Nobody says don't use heat pumps. Indeed I suggest using heat pumps is so obviously good that it's getting boring.

But we need to replace gas.

10.03.2026 21:56 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

He does not suggest we should not strive to get more heat pumps.
Instead, he suggests if we have a limited amount of effort, this would be better spend on decarbonizing the electricity production in winter.
How true, depends on how efficient heat pumps are in winter, not overall.
Por QuΓ© No Los Dos?

10.03.2026 20:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Hehe, in reaction to Pete Hegseth's advertising for Anthropic, and being frustrated with OpenAI getting dumber by the minute, I gave #Claude a try.
Not for coding, but for other stuff.
It's actually good. It seemed much more deep thinking than Gemeni or OpenAI, less dumping same old text stuff.

09.03.2026 07:20 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Sorry, people are getting killed in ridiculous numbers.
And what people care about is the oil price and it's consequences?
Get a grip, accelerate ways to live with less oil.
Fast, it's better for the environment anyway.

09.03.2026 02:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

WTF?
A collaborator submitted a manuscript to a Wiley Journal.
When liking my ORCID account, the first thing #Wiley asked me, is what gender I identify, what ethics I belong to and so on.
WTF.
NONE OF YOUR BUSINESS!

08.03.2026 21:58 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#mood

That early part of the year where you feel if you just had a new, really nice pen that it would make all the difference and bring much success

05.03.2026 21:51 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

How needs a plan B when you are doing plan Omega?

05.03.2026 04:15 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Naja, auch nach dem geΓ€nderten Gesetz dΓΌrfen Verbraucher WΓ€rmepumpen installieren.
Sollten installieren wie ich meine.

Aber es stimmt schon, die Sturheit und Nostalgie stirbt zuletzt und die AttitΓΌde "Ja nix neues, GlΓΌhbirnen, Gas und Benzin sind besser als LED, WΓ€rmepumpen und E-Autos"
ist ??

02.03.2026 21:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

With the disruption in oil trade and supply, maybe it would be time to think harder about using less oil? This would make us more independent, right?
Just a random thought.

02.03.2026 21:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

My estimation goes as this. V1 surface is between 2000 and 5000 mm2. (I can give a lot of citations for that). Thickness is about 2.5mm, hence 5000 to 12500 mm3. Density is about 79.000 neurons per mm3. (Garcia-Marin et al., 2024). I know a few assumptions in there.

25.02.2026 05:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

*The latter is my own estimate - looks like there is no estimate by anyone else that is reasonable. If you know one, please give me a citation.

25.02.2026 05:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Snapple fact of the day:
The entire mouse cortex has approximately 13.7 M neurons (Herculano-Houzel et al., 2013), human cortical area V1 has approximately 400 to 900 million neurons *.

25.02.2026 05:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I completely agree that the shift away from combustion is paramount. I think it’s also true that changing regulations creates uncertainty. I am not sure about the details of the changes, but in general I think incentives should be as little intrusive as possible, minimize bureaucracy.

25.02.2026 00:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

God forbid they would use this moment to reflect and acknowledge the mind boggling stupidity.

This is just one of many examples how idiocy hurts productivity and ruins the economy.
If only the political alternatives were not unfathomably evil.
I don’t want Australia to go to shit like …

24.02.2026 19:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I think the point that irks me the most is the attitude of secrecy under the mantel of "confidentiality".
While it may be entirely legit and ethical, it makes it reek of foul play.
This is antithetical of "above board".

18.02.2026 22:02 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Duh.
No shit Sherlock.

16.02.2026 07:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Unless of course the conclusions drawn where not aligned with the experiment.

13.02.2026 08:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

True, but it does hint towards those things. Often strongly.

13.02.2026 08:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Reproducibility and open science are great, but they don't necessarily equate to rigor. You can perfectly share a study and still draw weak conclusions. True rigor lives in the questions we ask, the designs we choose, and the inferences we make.

02.02.2026 17:15 πŸ‘ 20 πŸ” 10 πŸ’¬ 1 πŸ“Œ 1

I am not sure I follow the nonexisting argument.
"installing a heat pump in every home is impossible".
Why?
Also, installing a gas heater and a gas pipe into every home is possible?

01.02.2026 22:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I can only encourage the rest of the world to do the same.

23.01.2026 14:21 πŸ‘ 19 πŸ” 8 πŸ’¬ 1 πŸ“Œ 0

This clip is great. The fact that this view isn't the default amongst scientists is so depressing.

16.01.2026 11:46 πŸ‘ 22 πŸ” 5 πŸ’¬ 2 πŸ“Œ 0

The ARC’s processes are back to being farcical, @jasonclaremp.bsky.social

You advocated for a streamlined, efficient, faster ARC, but all that progress has been undone.

How can they claim to fund β€œinnovation” with more than a year between initial proposal & outcomes? It should be 6 months, not 16!

12.01.2026 01:34 πŸ‘ 34 πŸ” 22 πŸ’¬ 0 πŸ“Œ 2

Totally niche, I don'f follow. What is a New Year's resolution?

04.01.2026 02:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

It is not a dream at all. I have a zero bill home. Actually, I have a negative bill home.

04.01.2026 02:39 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

"What we didn’t seem to learn much about was the brain. It is unclear in what sense the foundation model ... tells us anything about how the visual system of rodents works. Instead, one suspects that in creating a β€œfoundation model” they’ve just rediscovered reservoir computing"

Indeed πŸ€”

30.12.2025 19:42 πŸ‘ 13 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0