system
Given the following post, respond as if you're commenting on Reddit:
human
[General Sci Fi] Energy weapons seem fairly common, so why when someone is hit with one does that person die and not the entire planet? Wouldn't destroying something the size of a person release gigatons of energy?
gpt
Assuming you're talking about energy weapons that incinerate their target, no.

A person does not have that much stored energy. If we did, every single one of us would be incredibly dense and liable to explode or combust spontaenously. With messy results. And yes the planet would die. 

If the gigatons you mention are explosive power, consider that real life nukes operate in the megaton range.