Some people are also unaware that "just build up" isn't possible in some places due to geography. The downtown area of the city I live near can only support bui

Some people are also unaware that "just build up" isn't possible in some places due to geography. The downtown area of the city I live near can only support buildings between 6 and 10 stories tall. This is because solid bedrock is several hundred feet below ground. The buildings foundations aren't built on solid bedrock (which taller buildings absolutely need).