You have to work a second full-time job that isn't the startup.
Probably during the day, so you can't do daytime things with your startup.
You have to borrow on credit cards to pay the rent, bills and food.
You get evicted if you don't.
You don't eat much so you can't think as clearly.
You lose your computer when the bailiffs come to collect.
You have to have a borrowing facility, and it has to not be declined all the time.
If you hit a limit, you have to pause the startup and work elsewhere, probably for months.
You can't go personally bankrupt otherwise your startup will be liquidated as well.
You literally don't have as much time, energy and mental capacity to put into the startup.
Saying that every company does this at founding is false. For those with better savings, better support buffers, they do not have the same amount of the above problems. In particular they can eat and have somewhere reliable to sleep.
For those without, they literally cannot put as much time and cognition into the startup.
You have to work a second full-time job that isn't the startup.
Probably during the day, so you can't do daytime things with your startup.
You have to borrow on credit cards to pay the rent, bills and food.
You get evicted if you don't.
You don't eat much so you can't think as clearly.
You lose your computer when the bailiffs come to collect.
You have to have a borrowing facility, and it has to not be declined all the time.
If you hit a limit, you have to pause the startup and work elsewhere, probably for months.
You can't go personally bankrupt otherwise your startup will be liquidated as well.
You literally don't have as much time, energy and mental capacity to put into the startup.
Saying that every company does this at founding is false. For those with better savings, better support buffers, they do not have the same amount of the above problems. In particular they can eat and have somewhere reliable to sleep.
For those without, they literally cannot put as much time and cognition into the startup.