If you are part of the 611 million non-native english speakers around the world, that's a question you'll be asking yourself when starting to create content online. To answer that and find out what would work best for you, there are two main factors worthy of analyzing.
At a collective level
As a portuguese native speaker, by communicating online in "my language" I'd be possibly talking to 218 million other native speakers and 11 million non-natives. In comparison, english is the second most spoken language in the world with 371 million native speakers and 611 million non-natives. Isn't curious that there are more non-native than native english speakers?
By communicating in english, I'm open to having conversations with different cultures and backgrounds since english is spoken worldwide.
Statistics aside, the decision of which language to speak when communicating online has a relation to which community do you want to be sparking conversations and sharing new ideas with.
Is it local or global?
If you think about which tool should be chosen to connect with the world, isn't language the most powerful and democratic one to do such a thing?
In a bigger picture, english is for me the tool (or language) I'm using to be part of a global conversation that we humans of the XXI century have the privilege to have access to.
At a personal level
I'm learning. I used to think that as a non-native speaker It would take years for me to fully speak english, when, in fact, english and all other languages are alive and constantly evolving inside groups of friends, communities, cities, states and countries. Learning a new language is a continuous that has no end.
Generally speaking, if you are a non-native speaker, by thinking in another language you change the way you think.
The way sentences are structured in portuguese is different from english, therefore I have to think differently to come with a sentence coherent to the language.
We associate too much our identities with the languages we speak. Though, on a deeper level, the languages we speak determine how we think. To be open to speaking a new language might be, or perhaps it is in fact, synonymous with changing the way we think.
This post was inspired by my second viewing of the movie Arrival. If you haven't seen it, please, do yourself a favor and go watch it.