As I recall

You remember when
We used to talk about
Similarities between beer froth
and bioreactor contamination
And now this reminds me
of that reminder

You remember when
We used to talk about
A reference to a reference
and ways in which things connect
And now I forget
what this is reminds me of

I remember when
I used to talk about
Other things with other people
and they were not formless gusts of rushing blood
And now I remember
flickering fingers trying to catch vapour