About two weeks ago a coworker came into my office and told me he bought a cheap motherboard so he could mine bitcoin with his graphics card. Is it theoretically still possible to make a profit with that kind of hardware nowadays? Please someone just tell me. I have no interest to do research into this. I just feel sadness for the crypto-bros.
Going a bit more in-depth: Mining is a competitive activity. Your chance of being the person to mine a block is proportional to the fraction of the hash rate of all miners you hold. Therefore, if everyone is using super advanced mining hardware and you go in with a GPU, you hold an insignificant fraction of the hash rate and have next to no chance of actually mining a block, while you still spend on power and hardware maintenance - which will probably make mining a net negative for you.
Nowadays BTC mining is advanced enough that the only way to make a profit is with big specially-designed rigs located in places with access to very cheap energy sources.