how long did enron last before they had to close because of fraud? it was over 20 years i'm pretty sure. that's not a good estimate.
They ran power plants and fiber optic networks. Those things continued to exist after they went bankrupt.
https://en.m.wikipedia.org/wiki/2000%E2%80%932001_California...
- it did boring non-tech big industry stuff
- it was good at this
- it started an in-house hedging department (normal)
- they were good at their jobs and accidentally created a massive speculative trading business that fell apart
You know, boring stuff like that.
Allegedly this is "good business", something that companies aspire to do (creating an environment where their competitors fail, and they profit big time)
The point of bringing it up is the demonstrate that companies are capable of doing multiple things in the course of their existence.