I mean, it's not easy to define the word real right? But we frequently refer to the 'daily' life as the real life, and dreams like a fictional reality.

What do we mean when we say real?

Is it 'real' just because other people "experience the same" (objective reality), and fictional/ilusional just because its subjective and can't be proved with the actual theories and instruments?

Couldn't the real daily life be just a dream, a huge shared lucid dream, with the intent-attention-focus of so much people and living-beings into it, that it becomes completely objective and persistent? (this is Castaneda's posture about reality).

What do you think?