Astral projection (or out of body experiences aka OBE) is awesome, but even in the most ordinary of circumstances -- the here and now of the room your body is in -- the state of mind and perception is pretty offbeat. I'd think that perceptual state would just add a ton of noise and interpretation issues to any data you got. Ordinary viewing -- without the OBE or lucid dream element involved -- is enough work to understand clearly, let alone when working with topics of the future (where our knowledgebase creates paradigms or missing-info that make it hard to accurately evaluate views/sessions done on very-future targets).