what does it mean? I know, y combinator people strongly advice on getting a partner, is it like a band handed way of saying add a co-founder to be considered?
Interestingly, I am 99% certain that I added my co-founder to the list, the day I applied. Then I got the "reminder" message, the same as you.
There are dozens of articles, outlining the success of multiple founders. Single founders do not succeed (statistically speaking) as often as multi-founder companies.
I Founded the company about 14 months ago. I found my first investor and named him a co-founder about 12 months ago. I hired a CEO about 10 months ago, and also made him a co-founder.
Finding the right people, (early) is a critical component to your ongoing success.
I would work on my own rather than compromising
1. Someone you can trust 2. Someone you’re not afraid to speak up with or against, without fear of repercussion personally within reason (ie, if you call each other crap every day, you’re not a good match most of the time)