If our world changed right now and reverted back to a hunter gatherer society, what aspects of culture do you seriously think would survive?

1) language- I think that language would survive, as languages are mostly transmitted verbally

2) I also think that writing would survive, as people would self-organize to teach children writing - they could for example carve messages in the wood for each other

3) As far as I can tell - all other aspects of culture (movies, books, how we interact ) is based on the assumption that we have access to our technology, so I don't think it would survive. 

Answer steam fog;