pie in the sky

/pˈaɪ ɪnðə skˈaɪ/

[phrase]

pie in the sky

[PHRASE]

something that is very good or desirable but highly unlikely to happen or be real

Examples

1. Political promises are often pie in the sky.

2. This talk of moving to Australia is all just pie in the sky.

3. The pie in the sky, the dream goal for brain-computer interface would be to allow people with severe disabilities and communication impairments to communicate in real time.

4. And then, not important and not urgent tend to be pie in the sky things that you'd like to do at some point like reorganize your closet, or it could be something that someone else could do for you.