| I've spent years of study perfecting a spell to turn Hermione into a porn star, and some spotty muggle has beaten me to it.
In recent weeks there has been an explosion in what has become known as deepfakes: pornographic videos manipulated so that the original actress' face is replaced with somebody else's.
As these tools have become
more powerful and easier to use, it has enabled the transfer of sexual fantasies from people's imaginations to the internet. It flies past not only the boundaries of human decency, but also our sense of believing what we see and hear.
There are some celebrities in particular that seem to have attracted the most attention from deepfakers.
It seems, anecdotally, to be driven by the shock factor: the extent to which a real explicit video
involving this subject would create a scandal.
Fakes depicting actress Emma Watson are among the most popular on deepfake communities, alongside those involving Natalie Portman.
As the practice draws more
ire, some of the sites facilitating the sharing of such content are considering their options - and taking tentative action.
Gfycat, an image hosting site, has removed posts it identified as being deepfakes - a task likely to
become much more difficult in the not-too-distant future.
Reddit, the community website that has emerged as a central hub for sharing, is yet to take any direct action - but the BBC understands it is looking closely at what it
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