There is almost half a world which uses a common script to write down its knowledge. There might be some little tweaks or a few additional characters but basically it is a common script. This script is known as the Latin character set and it has been used and misused to describe a wide range of languages.
A general problem with writing down stuff is that it tends to be viewed as truth. If people would find our documents in a thousand years they will hopefully see through our spelling mistakes or otherwise have to conclude after long ardeous studies that our grammatics would be far to complex for them to ever understand completely.