A chair versus a skyscraper… how different could they be?

I was at the Start Up Career Fair last Friday, talking with a few representatives of the furniture company Floyd, and my conversation with them struck my interest in the question: how different are architecture and furniture, really?
People say that architecture studies humanities to build spaces for humans to live their lives in. Sounds good. But when it comes to furniture, it’s almost as if nobody really cares about it; we take it for granted.
To me, my conversation with the Floyd team resonated with our beliefs that architecture and furniture design are really basically the same thing- the only difference is their sizing scale. This is our argument, which I’d love for any of you readers to comment on whether or not you agree!
1. Both architecture and furniture deal with societies and their habits.
2. Both architecture and furniture’s goals are for the design and aesthetics to be one and the same thing within itself.
3. Both architecture and furniture have the power to change our lifestyles.
4. Both architecture and furniture require stable engineering and general understanding of physics in order to function.
5. Both architecture and furniture fields have the power to influence one another throughout history.

Let me know what you think! I’d love to hear some thoughts!