Yes, Deep Nostalgia is safe to use for the general user, as multiple safeguards were included in its launch by MyHeritage and the company that created the deep fake tech, D-ID. In order to prevent the possibility of anyone using Deep Nostalgia in an inappropriate, dangerous, or disrespectful sort of way, there are only a limited number of approved "driver" face movements and consumers cannot make their own. Also, every video is clearly watermarked. Finally there are no audio or speech capabilities with the Deep Nostalgia tool.
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Deep Nostalgia™
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