system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How can concert tickets and big clothing drops seemingly be already sold out at the exact same second they go live?

For context:
Was just attempting to get Anderson .Paak tickets from TicketMaster however their site was already displaying that they were sold out at the exact same second they went live.
gpt
Either someone had access to buy before that, or a lot of buyers were just faster than you.

There's many examples of employees buying the entire stock before the sale goes live. And there's also many examples of people making software to buy tickets as fast as possible (seconds) as soon as sales opens, leaving little chance to people who buy manually.