Off topic: I got confused by the phrase kindle fire, until I remembered that it can also mean start a fire. Now the name of the tablet seems less arbitrary...
On that note, I also realized the connotation of "Tinder": combustible material which ignites upon coming into contact with sparks. Sparks fly when people meet - that sort of thing. Very clever indeed.
I thought it had to do with matches
Also in Tinder gives you "matches" and the logo is a flame.
Can't start a fire without a spark
I was ROLFing reading this
Starting a fire is the default meaning of the word.
Kindling as a noun is the twigs, leaves, moss or whatever used to start the fire.
Which is somewhat hilarious when you realize Amazon is telling you to burn books.
Doesn't sound bad when you take it figuratively. The fires that some texts kindled centuries ago are still burning.