Addendum: "Wrong" is also wrong. More nuanced would be to say that for an introduction to architecture (i.e. for an engineer to draw a trend line with a fat pen

Addendum: "Wrong" is also wrong. More nuanced would be to say that for an introduction to architecture (i.e. for an engineer to draw a trend line with a fat pen on a graph), this is the kind of detail that actually matters when it comes to intuition-building, so it's misleading.