At the beginning of a science, the first step is always to declare the thingness of something that we want to study. This is a star. That is a cow. This is a society. That is a race. This is a mind. That first step is actually a huge step which we rarely ever talk about.
It's just kind of assumed that obviously we can just identify things as clearly being real using our senses and our intuitions and as long as our scientific conclusions seem predictive to us (using the same senses and intuition) then we assume we must be on the right track.
Social phenomena present a real challenge here because we can't perceive social reality directly with our senses and different people have different intuitions which seem to lead to different frameworks which all seem to have some predictive validity.
To be clear, I don't think this issue is limited to social science, it's just more obvious there.
In my field statistics, statistical phenomena also can't be perceived with our senses directly and different people have different intuitions about data. This can lead to different frameworks that are extremely predictive but point to different underlying truths.

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More from @kareem_carr

3 Mar
I've decided to pull back from talking about race on social media. There are many reasons for this but the most important one for me is it has come to feel like a pointless energy drain that doesn't seem to make a difference.
During the summer, I was inspired to use my "platform" to be a "voice" but I don't think it has been very productive. Although many commenters have accused me of talking about race out of self-interest, I actually see it as a moral duty to help. A duty and often a burden.
I'm sure it has professionally hurt me. For instance, many people have made assumptions about my competence and intellectual background that simply aren't true.
Read 10 tweets
28 Feb
Any philosophers of science willing to vouch for the accuracy of this chart?

I don't think my view is represented here. Basically, I think scientific models start out lower down and can be moved upwards through different degrees of reality as work on them. Image
So my perspective is sort of a No-Free-Lunch or Very-Little-Free-Lunch perspective on scientific realism. Before I accept your theory, I want to characterize how much work you did and what kind. I don't want to give you "scientific reality" for free.
This is why I'm kind of a skeptic on "2+2=4" because in almost all cases one has done no real work to verify that a statement like this describes all of physical reality in practice. "All of reality" is very big you see.
Read 4 tweets
27 Feb
Statistics Formulas Explained!

This is a thread for data science beginners with a fun little twist at the end for the pros!

It will explain the formulas for:
1. the mean
2. the variance
3. and a fun link between both ๐Ÿงต

Keep reading to find out more! ๐Ÿ‘‡
Let's get warmed up by reviewing the definition of the mean or average of our data.
The variance formula looks a lot like taking an average but it's the average of the distance from the mean squared.
Read 10 tweets
23 Feb
As a non-American living in America, during a pandemic, I'm both awed and horrified by this country's reverence for work.
When most people around the world talk about work-life balance, they mean *quality* of life vs hours of work. Here in America, the trade off seems to be about years off your actual life.
HALF A MILLION Americans are dead because of this pandemic and as far as I can tell a huge number of Americans are OK with this. They would rather talk about the weather.
Read 13 tweets
22 Feb
I've worked in a lot of different sciences and what I've discovered is that each science is its own slightly bizarre alternate reality where the scientific method turned out differently.
People say you're entitled to your own opinion but not your own facts. But I need you to hear this: every science has its own facts. And I don't want to freak you out but they don't even agree on what a "fact" actually is.
The scientific method relies on the answers to questions like 'what is evidence'? Sciences are free to answer these questions in their own way and to define their own scientific method.
Read 14 tweets
19 Feb
You may have heard "IQ is about 50% heritable". What you need to know is that by the same logic, "Experiencing Racism" is also heritable. A dark-skin man is likely to experience racism and his kids are likely to experience similar levels of racism to him.
If that man had children with someone white, their children's tendency to experience racism would be intermediate between both parents. Identical twins raised apart are likely to experience similar levels of racism.
Fraternal twins would be less likely to experience similar levels of racism than identical twins. Every pattern that we would normally look at to figure out if something is genetic would say "experiencing racism" is inherent and genetic.
Read 5 tweets

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