Is it still possible to get away with a heist?
No, it was never possible to get away with a heist, and it never will be.The question of the authorities catching you is actually the least interesting part of the question. Suppose you weren't caught by the police following your heist:How would you have any confidence in yourself in your ability to make it on your own? How could you help but wonder if you'd be able to live by way of producing or providing something of value the way honest people do?What would happen to your curiosity about the world? There would be whole swaths of things that would be mentally off-limits, lest they remind you of anything to do with the danger of being caught for the heist you pulled. (Think all of the things that fall under forensic or other evidence!)As a secondary consideration, your relations with other people would also be terrible. Where are you going to go where you won't have to weave a web of lies about where you got your money from? How happy will you be living a life where you are constantly in fear of getting caught? What kind of life is it to know that your continued existence depends on others not knowing certain facts about the world? (Facts that they have every right to know about you...) If someone wrongs you, or does something unjust to someone or some thing you care about, how could you work up the courage to rectify that? Your own hypocrisy would likely stifle any such impulse, before you ever spoke a word of it.