This is something we have yet to see – Google is actually answering questions before you finish asking the question. If you use Google Chrome you will now be able to see answers to questions you are asking. It looks like this:
Notice that it is autocompleted and there is an answer to the question. This is going to cause traffic to answer related websites to drop significantly. This has been the case for years but will likely continue as the Google Knowledge Box is now expanding to the search box.
Is this something you have seen? What types of questions is Google answering without even hitting enter? We tried some different searches but this was one of the only ones we could find in which Google answered the auto complete question.