No, when referring to a person as a "wrecking machine," it is typically a metaphorical or idiomatic expression that does not imply that the person is an actual robot. In this context, calling someone a "wrecking machine" usually conveys that the person is exceptionally effective, efficient, or proficient in a particular task or activity and can accomplish it with great speed, power, or effectiveness.

The term "wrecking machine," used in this sense, is often used to describe someone who is highly skilled or accomplished in a particular field or activity and is able to "tear through" obstacles or challenges with impressive force or skill. It is a figurative expression that conveys the idea of someone being highly capable or unstoppable in a specific context, much like a machine designed to efficiently and effectively dismantle or demolish objects.

It's important to note that this is a metaphorical usage of the term and does not imply that the person referred to is an actual machine or robot. It's simply a colourful way to describe someone's proficiency or effectiveness in a particular area.
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