Today’s phrase is pie in the sky.
Explanation: If something is pie in the sky, it is either a prospect of future hapiness that is unlikely to be realized, or a plan or idea that seems good, but is not likely to be achieved.
Example: Jonas was enthusiastic about his pitch to save the company, but realized it was full of pie in the sky ideas that were not very realistic.
Origin: Pie in the sky is an American phrase coined by Joe Hill in 1911. He includes the phrase pie in the sky in a song he wrote called The Preacher and the Slave, which parodied the Salvation Army hymn In the Sweet Bye and Bye. Here is the verse it is from:
You will eat, bye and bye,
In that glorious land above the sky;
Work and pray, live on hay,
You’ll get pie in the sky when you die.