Let's assume that the people who will most likely buy geeky t-shirts range from approximately 18 to 35 years old. Let's also assume the people who will buy the t-shirts on this site are interested in biological sciences, medical sciences, engineering, computer science, and mathematics and are probably pursuing a degree (at least bachelors) in one of these fields. We can now break down the population (from 18-35 years old) into their respective educational attainment and look at the percentages of the subpopulations in these fields. So we get something like:

#People in related fields = (#PhDs * (%PhDs in related fields)) + (#Masters * (%Masters in related fields)) + (#Bachelors * (%Bachelors in related fields)) + (#College and HS students interested in related fields)

By looking at the 2010 Census data for educational attainment in >18yo people, we see the breakdown looks as follows:

Total

in thousands | Some College | Bachelor's | Master's | Doctoral |

18 to 24 years | 10693 | 2505 | 155 | 14 |

25 to 29 years | 4310 | 5338 | 1182 | 96 |

30 to 34 years | 3442 | 4502 | 1592 | 277 |

Total | 18445 | 12345 | 2929 | 387 |

Now, to determine what percentage of these degrees were involved in what field of study, let's look at some other data.

The black bars are for bachelors degrees from 2008-09. If we take the percentage of the fields of interest from this, we get 28.48% of all bachelor's degrees. We can do the same for the other degrees by looking at the appropriate data. For master's degrees we get 49.27% and for PhDs we get 60.10%. Let's assume that the distribution for people pursuing a bachelors degree is the same as for those

If we now plug this all into our equation, we get that the # of people 18 to 35 who are in the fields of interest is 10,445,308. Or 10.4 million people. Now this is only people who are in the related field, but not those who buy geeky t-shirts. That's an even smaller percentage of this whole thing, and a number that's very hard to estimate. Let's just say 2% of the people in this population would wear a geeky t-shirt. So, our total market is approximated at around 208,906 people. Keep in mind, we made a lot of assumptions here, many of which are probably off if not completely wrong, and we've ignored many different age groups including those people less than 18.

But to put this 200K number in perspective, there are over 100 million dog/cat owners and about the same number of people who have strong enough political opinions so that they vote. My measly 0.2 million is small fry compared to the pet owner/politically passionate market. The trick is go get every one of those geeky, sciency, techy people to buy a shirt or five. Piece of cake.

It's either that, or I'll start making "Kitties for Romney" and "Doggies for Obama" shirts.

The black bars are for bachelors degrees from 2008-09. If we take the percentage of the fields of interest from this, we get 28.48% of all bachelor's degrees. We can do the same for the other degrees by looking at the appropriate data. For master's degrees we get 49.27% and for PhDs we get 60.10%. Let's assume that the distribution for people pursuing a bachelors degree is the same as for those

*with*a bachelors degree.If we now plug this all into our equation, we get that the # of people 18 to 35 who are in the fields of interest is 10,445,308. Or 10.4 million people. Now this is only people who are in the related field, but not those who buy geeky t-shirts. That's an even smaller percentage of this whole thing, and a number that's very hard to estimate. Let's just say 2% of the people in this population would wear a geeky t-shirt. So, our total market is approximated at around 208,906 people. Keep in mind, we made a lot of assumptions here, many of which are probably off if not completely wrong, and we've ignored many different age groups including those people less than 18.

But to put this 200K number in perspective, there are over 100 million dog/cat owners and about the same number of people who have strong enough political opinions so that they vote. My measly 0.2 million is small fry compared to the pet owner/politically passionate market. The trick is go get every one of those geeky, sciency, techy people to buy a shirt or five. Piece of cake.

It's either that, or I'll start making "Kitties for Romney" and "Doggies for Obama" shirts.

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