Wouldn't the mark be an obvious one? I don't know, I'm asking...here, accept my mark and vow your allegience to me, you know - that kind of stuff?
If it's a pill with nothing attached, like no little note saying that once you swallow this pill you eternally belong to me in exchange for said goods and services...then the mark could be accepted by some who have no idea what they're doing.
Anyways, man's days are numbered. The Lord has given us each a number of days to be here, praise Him. Which of us, by worrying, can add even a second of time to our days on earth?
I know people who try...there's one lady I always see in town. She's 50-something. She's had so many skin treatments, her skin looks like a membrane one-cell thick.

She does those spray-on tans that make her look Oompa Loompa-orange and she's always wearing short skirts and carrying a tennis-racket, God bless her. If she could just see herself the way I see her - as a beautiful child of God regardless of outside appearances - she'd be happy with herself.
I myself pluck the gray hairs out of my goatee, hee hee.

And I exercise every day so I won't have the average Indian-guy build for my age group, hee hee. So I'm guilty, too.
Anyways, God has numbered our days. I'm glad. It shows me that I'm a mortal, and He is the Everlasting God. He is Mighty. I'm weak and I depend on Him.
...but the mark? I dunno.