If you are going to quote me, always do so in context. The context of the heat statement
can be viewed here and is a quote from a professor of Metallurgy at a Norwegian University of Science and Technology. As you can see she is providing a narrative description of a slide that exhibits a particular deformation, which she avers cannot be produced by mechanical means. If you wish to find that hilarious, then maybe it reveals your ignorance rather than the professor's, who happens to be Head of Department and Professor at Department of Materials Science and Engineering.