Hey wait do you guys think trading is locked behind knowledge? Like what I mean is how could you possibly trade if you don't know what these guys are saying so therefore you have to find the artifacts the translate their language first before trading. Did Sean already mention that
http://codepen.io/LukeFlego/full/oLwwjV/
http://arstechnica.com/gaming/2016/...rts-its-star-path-with-major-gameplay-reveal/
https://www.reddit.com/r/NoMansSkyTheGame/comments/4a07nn/new_info_from_pc_gamer_uk/
There are alien languages that the NPCs on a planet speak
You do not have to know a language before you communicate with an NPC. You can try a few different options, however you should be careful as certain actions may cause the NPC to dislike you
You can start to learn a language by finding a "Rosetta Stone"-like monolith. Once you've interacted with it some of the words of that language will start to make sense to you. This will give you a better idea of what to say to an NPC
You can sometimes find a helpful NPC that will help you learn the language
If you understand a language well enough, you'll have a good idea of what options to choose when interacting with, say, a trader
Unknown words in a language will appear as gibberish
If you don't know a language you can try using gestures
Making yourself seem more important than you really are may result in the alien getting annoyed with you. In certain cases they might shock you with a cattle prod-like stick
Basically, you can trade blindly, but the more you know and can communicate, the likely better the trades you get, and influence among their species/groups.