> Meta’s Reality Labs unit, which oversees the product as well as its virtual- and augmented-reality goggles, reported losses of nearly $5 billion in the fourth quarter.
Reality Labs is much much bigger than this product. It's unreasonable to point to their aggregate losses here unless you have some indication that those losses are due to this product.
The second they make this and make it useful in any way, immediately the apps people create will lay bare exactly how bad of a privacy invasion they are, tons of bad press ensuing.
It's definitely not technical hurdles preventing them from making one.
Censorship and alignment (speech, LLMs, glasses, drones, ..) rarely stops negative scenarios, but it slows positive scenarios from existence and competition with negative scenarios.