Meta is now measuring your bones to guess your age, which is a sentence that should concern everyone

Remember when the creepiest thing Facebook did was show you an ad for something you only mentioned out loud near your phone? Simpler times. According to TechCrunch, Meta is now deploying AI that analyzes users' height and bone structure to determine whether they might be underage. Yes, really. Your skeleton is now part of the terms of service.

So what is actually happening here

The system uses visual analysis - looking at physical characteristics like height and skeletal proportions - to flag potentially underage users. Meta says it's currently running in select countries, with a broader rollout in the works. The stated goal is child safety, which, sure, is genuinely important. But the method of getting there is raising some very loud alarm bells in the part of your brain that has been paying attention to Big Tech for the last decade.

To be clear: the intent here isn't nothing. Platforms genuinely struggle to keep minors out of spaces they shouldn't be in, and age verification is a notoriously hard problem to solve. Asking someone to type in their birthday and hoping for the best clearly isn't working.

The part where things get uncomfortable

Here's the issue. Training an AI to estimate age from physical appearance is not a clean, simple science. Bodies are wildly different. A tall 14-year-old and a petite 25-year-old exist. Bone structure varies enormously across ethnicities, health conditions, and genetics. The error margin on this kind of system could be massive - and those errors don't fall evenly across the population.

There's also the small matter of what you're actually agreeing to when you open Instagram. Most people are not thinking "yes, please scan my proportions." And once that visual analysis infrastructure exists, the question of what else it eventually gets used for is not a paranoid one. It's a reasonable one.

The bigger picture

Meta is under enormous regulatory pressure across multiple markets to do something about minors on its platforms. This feels like a response to that pressure - a technological answer to a political problem. Whether it's the right answer is a separate question entirely.

Child safety online is urgent and real. But "we are now using AI to analyze your physical body" is the kind of sentence that deserves a lot more public scrutiny than a quiet rollout in select countries. Watch this space - your skeleton apparently already is.