You may be familiar with the classic Black Mirror episode Be Right Back, in which a young woman whose boyfriend is killed in a car accident decides to communicate with an artificial intelligence imitating him, eventually uploading his AI ‘brain’ into an android body that looks just like him.
As you’d expect from Black Mirror, things do not go quite to plan and end up somewhat horrifying, but that doesn’t seem to have stopped public interest in AI immortality from surging. According to Google Trends, searches for “AI immortality” have surged 2,426% over the past year and jumped 91% in the past month alone.
Now, a new EduBrain survey of 3,000 people across three generations reveals that 1 in 3 millennials and 1 in 4 Gen Zers want to preserve themselves using AI after they’re gone, while their older peers remain skeptical – just 10% of Gen X are interested.
AI ‘deadbots’
“We’re already seeing early forms of digital personas – AI ‘deadbots’, grief simulators, digital twins and future-self models,” says Harry Southworth, Head of AI Development at EduBrain. “They can mimic some aspects of human behavior based on extensive data, but they are far from fully encoding a human mind, as it’s shaped by lived empirical experience.”
While the idea of AI “immortality” is gaining traction, the reality of how close we are to achieving it is far less certain.
According to Nicky Zhu, an AI Interaction Product Manager at Dymesty, even the most advanced approaches, such as neural interfaces capable of recording patterns of brain activity, remain a long way off. Current research suggests the technology is still at least 15 to 25 years away, and even that only addresses part of the challenge. The deeper issues, Zhu argues, are far more fundamental.
The nature of the human mind
Zhu outlines four major obstacles standing in the way of true digital resurrection — and they go well beyond simply building better AI models.
The first is the nature of the human mind itself.
“Our mind isn’t a dataset. It is an enormous challenge to develop technology that can replicate memory and decision-making. I have developed conversational AI systems that have analyzed tens of thousands of user interaction data points. Yet, in more than 67% of cases, they still cannot predict rational human behavior. 94% of human memory and decision-making is based on unconscious, implicit, and automatic processes, while modern AI systems need to be provided with explicit, conscious data. As a result, ‘digital immortality’ services that build chatbots from text messages and social media posts don’t recreate a person; they generate simplified caricatures.”
Even if that hurdle could be overcome, Zhu points to a second concern: the growing commercialization of grief.
“AI representations of deceased loved ones create emotional dependence that companies can profit from; the average family pays $1,840 per year for chatbot subscriptions, according to recent market research. These predictive algorithms that provide statistically probable replies can prolong mourning, potentially harming families rather than providing comfort.”
There are also serious security implications.
“When sensitive data about people is stored in files, the risk of data breaches increases exponentially. Exposing the personality patterns, personal memories, and decision-making patterns of thousands of people will create opportunities for identity theft, behavioral manipulation, and fraud on a massive scale. Current tech and laws aren’t equipped to handle such complex issues.”
And finally, there’s the sheer scale of what would be required to accurately model a human being.
“We found that even fully specifying the decision preferences of one individual required at least 340 hours of interviews and behavioral tracking. Capturing someone’s broader cognitive architecture would likely require years or even decades of data collection. And storing one person’s full sensory data for just one day would require around 2.3 petabytes – more than most data centers can handle per individual, not to mention the massive energy demands.”
A digital echo
Taken together, these challenges paint a stark picture: while AI can already simulate fragments of a person, recreating a full human identity remains not just technically difficult, but conceptually unresolved.
Which leaves us in a strange place. The appetite for AI immortality is clearly growing, especially among younger generations, but the technology itself is still a long way from delivering anything close to the real thing.
For now, at least, what we’re being offered isn’t life after death, it’s something closer to a digital echo, and if Black Mirror taught us anything, it’s that it might not be the comfort people think it is.
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