We’ll see, though this like other Apocalypse detail seems to beg to be taken as symbol. The hand symbolizes actions, the head symbolizes thoughts. ID cards are not even the point. It’s allegiance.
If it’s not meant to be taken at least partially literally then how do you make sense of:
And the second beast required all people small and great, rich and poor, free and slave, to receive a mark on their right hand or on their forehead, so that no one could buy or sell unless he had the mark—the name of the beast or the number of its name.
Interesting, and likely accurate. There are enough of us (with rifles) that a literal chip would be nearly impossible to impose.