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Indeed, perhaps it can only be lost.

Dear Double Agent,

A veritable question of much value, my friend!
I recommend you check out my new post which raises an adverting finger to the problem with heuristical suppositions as made by our fellow commenter OV (see here). May you keep your question warm and well catered for to impregnate her with true wisdom.

Questions are the beginning to the end of any problem.

Thank you for your profound meataphysical inquiry.
Just look around and know it is so. We seldom lose our keys really; they usually turn out to have been placed somewhere we forgot about.
Negligence is forgetfulness and out of this most of us are born. We forgot to love and procreation just happened.
Many resources develop this line of exploration. If you lived in my area I would invite you to take a look in my library so that you might deepen your own thoughts on this spiritual reality with the help of another couple of thousand thinkers deeply concerned about our collective amnesis.