In most cases, we are our own limiters.
Without knowing, we set up boundaries that are supposed to define us, but in the long run, end up hindering who we are and where we can go.
If you look at Earth from space, one major thing stands out when trying to pick out where you live: no borders. The boundaries of the world to divide countries, states, provinces, etc. are all created by our us as a way to separate us from our neighbors and to have certain claims of land and resources.
Imagine for a second that none of these boundaries existed. Neighboring countries would be one landmass and each of their citizens would no longer have to claim a specific location as for what defines them.
This phenomenon would actually make our respective cultures more prominent to who we are. It is natural that living in different parts of the world would give us different experiences. Meeting someone from halfway across the world would still have the same effect as it does today, being able to talk about unique characteristics of your environment such as traditions, music, art, etc. The only difference is, we would not separate ourselves based on our nationality and would make us all a part of the same society. Looking at the world in this way, we will see a continuity in our society instead of a view that is segmented by one’s birth country of continent.
Race is another aspect that is a limiter to who we are that is created by us. The primary reason why our skin tones range from the darkest of browns to the lightest of whites is due to melanin, a human characteristic that is affected by geographical distribution and the amount of sunlight that someone gets (Wikipedia). With so much “interracial” interactions over the years, race is starting to becoming more and more ambiguous. Instead of race defining a general category of society to place someone in, it is merely a characteristic of where you came from geographically, which, as states above, is another aspect of our culture.
We can metaphorically compare our society to a color spectrum. When looking at a spectrum as a whole, we are unable to pinpoint exactly when it changes from being one color to another, but individually, each point on the spectrum has its own properties. The same is naturally true for our society, when we look past the self-created boundaries. When looking at society as a whole, we are unable to distinguish the transition from one culture to another since so much is shared between everyone, but if you look at them individually, they each have their own characteristics based on their respective developments.