Spell Slots and Spoon Theory

Is there some kind of logic behind spell slot progression? spell slot When a spellcaster casts a spell using a slot that is of a higher level than the spell, the spell assumes the higher level for that casting For instance spellcast slot Spell slots are a staple of Dungeons and Dragons for casting magic However, the DMG

spell slot calculator spell slot for every level up? What did it mean by “every new step?” Something to confirm after his next level up Once he reached level 23, he would get new