How much can you earn by applying ai agent? Is it related to regular jobs?

Just some questions about AI AGENTS because they seem to be everywhere these days. It’s honestly hard to believe how trendy they’ve become—and even harder to understand what they actually are and what makes them different from the AI tools we’ve already been using. Are AI agents really a major step forward, or are they just a new name for a combination of existing AI technologies? What can an AI agent actually do on its own? Can it truly make decisions, plan multiple steps, use different tools, and complete tasks without constant human instructions? I’m also curious about where the real value is. Are companies already seeing meaningful improvements in productivity, automation, or decision-making? Or are we still in the early hype stage? And perhaps the biggest question: what happens when AI agents become much more capable and start working alongside humans on a daily basis? There’s clearly a lot of excitement around AI agents right now, but I’m still trying to separate the genuine technological breakthrough from the buzz. So, what am I missing? What makes an AI agent truly different, and why is everyone suddenly talking about them?