It's 23:00 and I'm too fucking tired to do anything but sleep.

How the fuck you people stay up all night and even develop cool stuff while doing so is beyond my understanding.

Don't fucking ask me! If I could sleep I definitely would. But I get tired at 2am when I'm lucky so I've got a lot of time for projects

It all depends on what you are doing. Having an objective forces the brain not to sleep. Example of two scenarios:

1. You are building something and are too excited. You want to complete the feature 'x' before hitting the bed and while doing so you go till feature 'z' and don't even realise it's day break.

2. You are building something and are stuck with an issue. You can't sleep till that issue is resolved and while fixing this you don't realise that it's day break.

Main focus is while building something. Otherwise, falling asleep is but natural for an idle mind.

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After you hit a certain threshold you stop giving a fuck lmao. Been doing it for years