system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 - Google's new privacy policy

I just don't get what all the fuzz is about?
gpt
Google will now take all the things you read, write or click in any of the Google products and use them in order to show you targeted advertisements.

The big difference is that (1) the information from all products (search, G+, docs) is combined, which didn't use to be the case - this will allow much more accurate profiling which in the end will basically identify you. No matter if you tell them your exact details, they might know who you are, where you live, etc - no matter if you surf in private mode, from different computers, etc. As long as *something* connects the information (e.g. one gmail account, same computer, same IP) Google will try to match these information.