I’m not sure how they got to that conclusion, but we can kinda guess.
The tongue is PACKED with blood vessels, so in case of any damage it can get tons of nutrients to fix itself. But this takes a very energy-intensive.
So if the rest of the body would have the same density of blood vessels, we’d need drastically more energy to feed all of that.
And I guess they’re asserting that all else being the same we wouldn’t be able to ingest or process sufficient food to keep that going.
It’s a bit of a strange argument though, I’m going far outside of my physiology understanding, but you’d have to imagine that had we evolved such advanced healing capabilities, we’d have also evolved the means to feed them. And OP underestimates just how much food someone can eat. As someone dealing with an ED, I can tell you that you can easily triple your calorie intake (though whether that’s sufficient I wouldn’t be able to say…).
All in I’d look forward to OP defending their assertion.
That’s against Google’s terms of use, you’re not supposed to replace an app with something different.
If you had downloaded an app and all of a sudden it changes into something else, you’d be pretty displeased. Imagine if Facebook the company suddenly changed the Instagram app into an app for Facebook, they can do most of the same things, but it’s not the same.
Plus it would be fair for the developer to get new payments for lifetime subscriptions, it’s a new app which is significantly more work than just maintaining an existing one.