system
Given the following post, respond as if you're commenting on Reddit:
human
[Back to the Future] Why does the Mr. Fusion need to be so powerful?

What do the people of the futuristic year of 2015 have in their homes that requires a fusion reactor with an output of at least one point twenty-one jiggawatts to operate?
gpt
Thank you for your question concerned citizen.

We refer you to section 6 of the user manual "The Grid and your place in it".
The Mr Fusion device will send all generated electricity into The Grid and use it to power nearby homes, streetlights, hoverways and robots. Our lives depend on the powering of devices all around us, from your beautiful screens and multipoint fax technology right through to holo-ads for new blockbusters coming your way from our sister company Mr Hollywood.

With a peak output of 1.3 Gw, your Mr Fusion will operate anywhere from 500 watts upwards based on the load required at the time.