"1 BUT AS to the suitable times and the precise seasons and dates, brethren, you have no necessity for anything being written to you."
Paul was speaking to the brethren there and then. He expected Christ to return any day in his life time. They are all dead now and have been for around 2000 years.
He was as deluded as the brethren who more recently declared to the world that, 'millions now living will never die.' They are dead too!
This is what people do with their lives when they base their expectations on nothing more than hearsay, and false hope.