It is an interesting question that I believe anyone who visits here will have wondered about often, I know I have.
The best answer I have been able to conjure on the matter is this:
Height follows a normal distribution (gaussian distribution in math). With a normal distribution you have what is called a standard deviation, which quantifies the spread. In this case it would be the spread of male heights in the population. One standard deviation is defined as the 68th percentile. Meaning that 68% of male height will lie within this range. Two standard deviations are known as the 95th percentile. Meaning that 95% of male height will lie within this range. Three standard deviations is known as the 99th percentile. Meaning that 99% of male heights will lie in this range.
In the image below you can see the area between -1σ and 1σ is the one standard deviation range. Meaning that 68% of male heights will lie in this range and consequently considered average heights.
(https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Standard_deviation_diagram.svg/325px-Standard_deviation_diagram.svg.png)
Anything below -1σ can objectively be categorized as short in my opinion. Everything above +1σ can be consequently be considered tall in my opinion. Then you have heights below -2σ which is very short and below -3σ extremely short.
What height these ranges correspond to will depend on which country you are living in.
As an example in Denmark, statistics from 2007-2008 show that for young adult males (ages between 18-24) at the time, the mean height in this normal distribution was approximately 182 cm. The 1 negative standard deviation (-σ) was approximately 178 cm. The negative second standard deviation (-2σ) was about 172 cm. The 1 positive standard deviation (σ) was approximately 187 cm, so this is where you would be considered tall. The second positive standard deviation (2σ) was approximately 194 cm, so this where you would be considered very tall. Source: https://www.sdu.dk/sif/-/media/images/sif/projekter/projekter_dokumenter/kram/resultater/fra+helbredundersoegelsen/anthropometry.pdf (https://www.sdu.dk/sif/-/media/images/sif/projekter/projekter_dokumenter/kram/resultater/fra+helbredundersoegelsen/anthropometry.pdf)
These numbers will of course be different for other countries. If you live in the Netherlands they will be higher while if you live in Italy or Mexico they will be lower. This can also explain why some people here on the LL forums will consider LL at a height of say 5'8" (173 cm) if they live in a tall country, while for someone in a shorter country, 5'8" (173 cm) will be a perfect height and they cannot understand why someone with that height would consider LL.
It is an interesting question that I believe anyone who visits here will have wondered about often, I know I have.
The best answer I have been able to conjure on the matter is this:
Height follows a normal distribution (gaussian distribution in math). With a normal distribution you have what is called a standard deviation, which quantifies the spread. In this case it would be the spread of male heights in the population. One standard deviation is defined as the 68th percentile. Meaning that 68% of male height will lie within this range. Two standard deviations are known as the 95th percentile. Meaning that 95% of male height will lie within this range. Three standard deviations is known as the 99th percentile. Meaning that 99% of male heights will lie in this range.
In the image below you can see the area between -1σ and 1σ is the one standard deviation range. Meaning that 68% of male heights will lie in this range and consequently considered average heights.
(https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Standard_deviation_diagram.svg/325px-Standard_deviation_diagram.svg.png)
Anything below -1σ can objectively be categorized as short in my opinion. Everything above +1σ can be consequently be considered tall in my opinion. Then you have heights below -2σ which is very short and below -3σ extremely short.
What height these ranges correspond to will depend on which country you are living in.
As an example in Denmark, statistics from 2007-2008 show that for young adult males (ages between 18-24) at the time, the mean height in this normal distribution was approximately 182 cm. The 1 negative standard deviation (-σ) was approximately 178 cm. The negative second standard deviation (-2σ) was about 172 cm. The 1 positive standard deviation (σ) was approximately 187 cm, so this is where you would be considered tall. The second positive standard deviation (2σ) was approximately 194 cm, so this where you would be considered very tall. Source: https://www.sdu.dk/sif/-/media/images/sif/projekter/projekter_dokumenter/kram/resultater/fra+helbredundersoegelsen/anthropometry.pdf (https://www.sdu.dk/sif/-/media/images/sif/projekter/projekter_dokumenter/kram/resultater/fra+helbredundersoegelsen/anthropometry.pdf)
These numbers will of course be different for other countries. If you live in the Netherlands they will be higher while if you live in Italy or Mexico they will be lower. This can also explain why some people here on the LL forums will consider LL at a height of say 5'8" (173 cm) if they live in a tall country, while for someone in a shorter country, 5'8" (173 cm) will be a perfect height and they cannot understand why someone with that height would consider LL.
I can't agree more with you.Someone excessively strict is holding two different principles like in some regions with 175cm average height,174 or 173 cm is short but 176cm or 177cm is just on average.The former conflicts with the latter.That's why you can still see someone stupid over his inhabitat's average height than 5cm he is still considering LL cuz he is too perfectism to accept the truth that he can be called tall already.
And also why women are always seeking for spouses with height over the average height than 10cm and they are still keeping saying he is just normal.