So it would seem. The Amazon description for Michael Roger's Honeycomb Decomposition Book refers to it as “a new spin on an old concept.” This old concept is not one I've been familiar with.
Searching around, I found no further explanation or discussion, but it can't be that complex. Blank notebooks are perfectly suited for recording journals. Nothing new about that, but that decomposition term points to a new way of looking at journals as compost piles for memories.
Think about it. When you pile weeds, grass clippings, dead lettuce and such into a compost pile in your yard, it all decomposes into rich fertilizer to spur the growth of newer plants. Something similar takes place with memory. Look back through old journals, if you're fortunate enough to have some. Some old thoughts may sound silly to you now, some profound. Even more mundane ones are likely to spark new ones, to give you fresh perspectives on perplexing matters. Nearly all will have been transformed, one way or another, by time.
Garden matter does not decompose overnight. Months or years may pass before it's ready to use. In the meantime, matter in the pile has broken down, fermented and mixed around, generating considerable heat in the process. You won't notice from the outside, but this is not a calm process. Decomposing memories can also generate heat, painful heat at times, which may encourage you to keep journaling and adding to the pile.
This decomposition process is one of the reasons to wait for a time before writing a lifestory or memoir. Letting things stew around with other memories for several months or years mellows them, deepens their meaning and generally enriches them. Using your mental spading fork to churn things around now and then speeds the process and produces a nourishing memory stew, ready to hit the page.
What better reason to keep a journal, at least now and then? And what better reason to dig around in old ones from time to time?