>>11382505
In my fantasies there are many tiers to slavery. Highiest tier is like a teenage delinquent who broke a window and now has to labour to pay it back. This kind gets a temrorary, stealthy, easily removed barcode. Then there are slaves with longer contracts, like months or years, but with some human rights still, an identity and a life to go back to. Those get the proper barcodes that are hard to remove. Then there are slaves for life, with no rights, no identity and no way to regain their freedom. Those get the unremovable chip. Of course, slaves are valuable so there are strong incentives for owners to lower their slaves' standing until they are forlorn, but they can only do that as punishments for breaking rules, failing tasks etc.
>>11382512
Yes, future technology is very hot, but i don't like to make it all-powerful, as then there is no humanity left, you may as well use androids. What's more realistic is a shock collar that reads your thought patterns and 'adjusts' them. A cruel owner may program it to punish you for reacting to your old name or thinking about the past- it's a slow corruption