I don't think the art of conversation is dead. It's just that when you get older it's more difficult to find someone you can feel comfortable with and have a decent conversation.
You also get more wiser (well, some of us do. Not me.) When you were young you could solve all of the world problems in a single conversation with some friends that went on till the small hours. You would go to sleep satisfied that you had just together saved the world... until you woke up the next day, dull with a hangover and all the brilliant solutions forgotten. That art has gone lost with the years.
But a good conversation should still be possible, with the right company.
Most conversations I have these days is with myself.