I like how the article just hand waves away the 4,000 sq. ft. figure by saying "but you probably don’t need quite that much as long as you’re efficient" like so

I like how the article just hand waves away the 4,000 sq. ft. figure by saying "but you probably don’t need quite that much as long as you’re efficient" like somehow magically you can make it work in 200 sq. ft. You can't.