In regards to eating meat

[Diana]

Also, we do not seem to have the same definition of what a sentient being is. For me, this means self-aware and this comes in 3d. I also believe everything is conscious even if not self-aware.

Merriam-Websters:
Definition of SENTIENT: responsive to or conscious of sense impressions
http://www.merriam-webster.com/medical/sentient

Wikipedia:
Sentience is the ability to feel, perceive or be conscious, or to have subjective experiences. Eighteenth century philosophers used the concept to distinguish the ability to think ("reason") from the ability to feel ("sentience"). In modern western philosophy, sentience is the ability to have sensations or experiences (described by some thinkers as "qualia"). For Eastern philosophy, sentience is a metaphysical quality of all things that requires respect and care. The concept is central to the philosophy of animal rights, because sentience is necessary for the ability to suffer, which entails certain rights. In science fiction, non-human characters described as "sentient" typically have similar abilities, qualities and rights as human beings.
http://en.wikipedia.org/wiki/Sentiencehttp://en.wikipedia.org/wiki/Sentience