However is an adverb and is used to link (contrast) two separate sentences. It usually goes at the beginning and is followed by a comma.
e.g. It was raining. However, he decided to walk to work.
AI is bad for you
From the Centre for Humane Technology https://centerforhumanetechnology.substack.com?utm_source=navbar&utm_medium=web From the BBC https://www.bbc.com/news/articles/cd6xz12j6pzo
