That sounds like reasonable reflection DMcG. Whether something is a lie is a bit slippery . I think Thomas’ definition is more clear cut , whilst the other , while true , is more difficult to determine . For example , is it deception to push one idea , thought to be fact , while not mentioning all the arguments and data that don’t fit said idea ?. My opinion would be that it is intended to deceive if you know that other data and arguments are a big problem for what you are promoting - but again determining that in others may not be easy !