When you have two people on the same page they can go far together.
To add to what you said, I definitely think two people starting out should build together.... But then take situations like Kevin Hart and the brother from Sesame Street....what's the point in building together if you won't be together?
I am also iffy on building with a person on a different plateau financially as well....I've been there done that and it didn't work...
Why should I build with you? You wasn't with me shooting in the gym...

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I don't know.... It's just not as black and white as people paint it....