unjust
Explanation
In this comic, an older man (labeled as "Grandpa" in the caption) delivers what sounds like a profound philosophical lament: "It's an unjust world. Kind people endure lives of hardship and deprivation while the deeds of the wicked go on and on, day after day, without any comeuppance in this world or the next." The caption then reframes this speech as "Grandpa shares his most useful lifehack."
The humor hinges on the ironic reframing in the caption. What initially reads as a sorrowful moral observation about the unfairness of existence is recast as practical advice -- a "lifehack." The implication is that Grandpa is not lamenting injustice but rather encouraging his listener to be wicked, since the wicked apparently face no consequences whatsoever. It is a dark, cynical joke that subverts the expectation of grandfatherly wisdom: instead of teaching virtue, Grandpa is essentially saying "evil works great, no downsides." The term "lifehack" -- normally associated with trivial productivity tips -- makes the moral nihilism even funnier by framing it as breezy, utilitarian advice.