How is USDT always $1 dollar?

I've always been curious about how USDT manages to maintain its peg to the US dollar. It seems like such a complex mechanism in the volatile world of cryptocurrency. How does it consistently hold its value at exactly one dollar? Is it some sort of magic or a sophisticated algorithm? I'm sure there's a lot of technical jargon involved, but could you break it down for me in layman's terms? I'm genuinely fascinated by this and would love to understand the mechanics behind this remarkable feat of maintaining a stable price.