Technically, you can raise $3 million using YC SAFEs, sure. And you can raise from 3 different investors. Not to be pedantic, but a SAFE is not a "note." It'

Technically, you can raise $3 million using YC SAFEs, sure. And you can raise from 3 different investors. Not to be pedantic, but a SAFE is not a "note." It's not debt. That's part of why startups like them (and many investors do not). Even though I'm a lawyer, I'm the first to point out what startups can do on their own. A simple SAFE round can sometimes be done without lawyer involvement, if you know what you are doing. But $3 million is a serious amount of money and it's worth getting a lawyer on board for something like that.