#plats­ki says: An appli­ca­tion with Undo capa­bil­i­ty becomes explorable, not fright­en­ing. Fail­ure to imple­ment it prop­er­ly is a mor­tal sin.

#plats­ki says: “Know Thy User, For He Is Not Thee” (David S. Platt)

#plats­ki says: “Garbage In, Garbage Out” (demot­ic)