π/4, the Euler–Mascheroni constant, Chaitin's construction, the fraction of my internal narrative which consists of various rephrasings of I've been a contemptible fool; but, that's decision-theoretically irrelevant

Why is it considered rude to reschedule an event after you've already sent out the invitations? Why do people stubbornly rejecting a compromise tend to do so in a polite and kindly manner? Why did you name your car Rainbow Dash? Speculative answers to these and other questions might be found in the following list of observations.

You can't spell alliteratively without literati.
You can't spell announcement without cement.
You can't spell apprenticeship without entice.
You can't spell chemotherapy without mother.
You can't spell eponymous without pony.
You can't spell compassion without compass.
You can't spell literate without iterate.
You can't spell disappointingly without tingly.
You can't spell disapproving without roving.
You can't spell disconcerting without sconce.
You can't spell discontinuance without nuance.
You can't spell ill-naturedness without redness.
You can't spell illustrative without strati.
You can't spell intransigently without gently.
You can't spell resolute without solute.
You can't spell oversuspicious without versus.
You can't spell precedent without recede.
You can't spell vindictive without indict.

YOLO, VOI