Deontological (rule-based) ethics are often implicitly justified by the good outcomes their rules are presumed to create. If a moral rule was known to produce the worst possible results, its proponents would likely abandon it, revealing a hidden consequentialist foundation for their beliefs.

While truthfulness is a cornerstone of relationships, dementia care can create ethical conflicts where protecting a loved one from distress or greater harm, like institutionalization, outweighs a rigid adherence to the truth. "Therapeutic lying" can become a necessary, though difficult, tool for compassionate caregiving.

A philosophical view of honesty defines it not merely as refraining from lies, but as a deep-seated character trait. It requires consistent, morally-motivated (not self-serving) behavior across time and diverse situations, encompassing cheating, stealing, and hypocrisy.

If one truly believes AI poses a non-trivial extinction risk, utilitarian ethics can lead to an alarming conclusion: extreme actions, including violence, are justified to prevent a catastrophically greater harm. This presents a core philosophical paradox for the AI safety movement.

Thomas Mueller-Borja views honesty as selfishly practical, as dishonesty is energetically draining. However, he places kindness higher in his value hierarchy. In situations of tension, choosing the kind path may trump absolute honesty, especially when recognizing that everyone holds their own version of the truth.

Common thought experiments attacking consequentialism (e.g., a doctor sacrificing one patient for five) are flawed because they ignore the full scope of consequences. A true consequentialist analysis would account for the disastrous societal impacts, such as the erosion of trust in medicine, which would make the act clearly wrong.

Some truths, like telling new parents their baby is ugly, are considered 'bad truths.' They cause significant emotional pain without leading to any learning or positive change, making it a situation where a lie is morally preferable.

A lie intended to be benevolent backfires when the recipient believes the withheld information was necessary. The host's mother lied about COVID exposure to avoid stress, but it was seen as a paternalistic betrayal because the host felt the information was critical.

Deceiving someone with severe dementia about a painful truth (like a death) is considered compassionate because they cannot properly process it. Telling the truth would only cause repeated grief without any benefit of understanding or growth.