system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 how buying two lottery tickets doesn’t double my chance of winning the lottery, even if that chance is still minuscule?

I mentioned to a colleague that I’d bought two lottery tickets for last weeks Euromillions draw instead of my usual 1 to double my chance at winning. He said “Yeah, that’s not how it works.” I’m sure he is right - but why?
gpt
Your friend is mistaken. The odds of winning Euromillions are close to 1 in 140,000,000. The 1 is for the 1 set of numbers you get on each ticket. When you buy two tickets, you have 2 sets of numbers that could match the winning the numbers. So, your odds are 2 in 140,000,000.

So long as each ticket has a different set of numbers, you can double your odds simply by doubling the number of tickets you buy.