Lying In Expression

I had previously asked a question about lying in fiction, but I feel I had omitted some important elements which I recently realized. I often write theoretical statements I am unsure of. 1. Does writing (not fiction) something untrue in itself, even if not shown or deleted, cause one to have uttered a lie? 2. Does speculation about something, where ideas are asserted without certainty, consist in lying as well? I am mainly asking because I had recent intuitions that the way I wrote could be a form of lying, and that symptoms in myself -- such as inconsistency and great uncertainty -- could perhaps be linked to this form of false-like expression. Since the Buddha advised against lying even in jest, I wonder if my expression's closeness to lying is detrimental. Thank you.