Re: I am a bear of very little brain.
Or to put it another way, the temporary IPv6 addresses are indeed temporary. They only last a fixed time, or last a bit longer if they are currently being used by some application for a long lasting connection. More temporary addresses are generated for new connections when the old ones expire. So depending on how busy your applications are at creating new connections, or reusing old connections, you will have some random number of temporary IPv6 address at any given time. Of the two computers I have running currently, one has none, the other has eight.