No text, but a visual code

[Linda]

  The question is: are the people of the 15th century and we of the 21st century the same humanity?
Of course not. Exaggerating a bit, I have the feeling that the mentality of an extraterrestrial would be more similar to ours than that of a person of the fifteenth century. We are the product of time.

I think they were the same humanity that we are now. I dont know about you but i dont think that what i wear, eat,  read or learn makes me any more or less human than if i switch to only wearing, eating and reading 15th century items, (among whatever other things). Id miss some things of course, given our technology today.. But i am sure there were those that were of various levels of intelligence just as there are now, some kinds might not be as useful now, some moreso. 

I myself am seeing things in quire 13 that are beyond my expectations, which if they are so, would be pretty cool.. But then, if aliens came down and judged us on our intelligence 600 years from today, it would depend on the sampling they were able to take, there is a lot of repeated utter trash mixed in with the rare gems of art, wisdom and knowledge, with part of the latter coming from ancient times.

Someone plucked from the 15th century and brought to ours would have some catching up to do, and some getting used to things that have changed, but i think they could manage it. Imagine the gaps they could fill for us if they (and we, in our preparedness for their arrival) were of the right ilk for what we wanted to know about those times.