What exactly would be the plusses and minuses of being able to google information instantaneously in your head
Ability to "remember" many details about a person or issue in the middle of a conversation, so that you can marshal facts quickly and check the accuracy of what other people are saying.
The person you're talking to could much more easily pretend to be somebody they are not by googling information and feigning expertise.
You'll also get the latest news headlines
You'll spend so much time in your head reading google news and watching YouTube that you'll zone out during conversations
Instant access to infinite data storage allows you to quickly store your every interesting thought, and search through them instantly.
Over reliance on "offloaded" memory means people make less of an effort to remember
CON: Google ads are constantly running in your head, perhaps designed to respond to thought patterns.