Final thoughts before the election…

First, I subscribe to Tolstoy’s view of history rather than Carlyle’s “Great Man” viewpoint. So, from my point of view, where the US find’s itself in this particular election is not so much a function of the person currently holding the office, but more of where the US polity is right now.

Second, the problem of humanity’s position with regards to the rest of the biosphere aren’t going to really change after Tuesday. Whoever wins, the climate disruption will continue and the follow-on effects, both predicted and unknown, will continue to challenge us.

Third, much goes on outside the borders of the United States: some good, some bad, but all of interest in any case. I am intrigued by the entire notion of the Pacific Rim as a geo-political entity. Mostly, it seems to have a dynamism that the rest of the geopolitical world lacks these days.

Finally, the US continues to be beautiful–the land itself is the greatest asset of this place that I call home.

More scientists in the Senate…

I hope. Here’s one running for US Senator in Wyoming, Merav Ben-David. Anytime I see scientists entering the political arena I want to cheer them on. Our profession needs to become far more active in setting an agenda for the future. And that can’t be done entirely outside of politics. She’s running as a Dem. Now let’s see a scientist step up from the other side of the aisle. Oh wait, here’s one with an impeccable NSF record. Kelvin?

Artemis and a legal framework for human activities in Space

I’ve been following the Artemis Accords closely. They represent a follow-on to the Outer Space Treaty of 1967 and the immediate context is the US goal of returning humans to the Moon by 2024. I’m less interested in the return trip to the Moon than I am in future legal frameworks for Space.

With regards to such legal frameworks:

To my mind there is the question of extraction of valuable resources from the Solar System and the property rights that might accompany those. Then there is the question of how, in the future, the notion of Westphalian nation states might extend off the planet. An additional question is about the militarization of space by current nations although it looks to me that the horse has already left the barn on that one.

N.B. As a matter of record, I’m inclined to oppose the notion of a separate US Space Force because I think such a DOD organization will push us further down the road of deploying offensive weapons on orbit–a bad thing, in my opinion.

Scientific questions that I’ve been thinking about…

  • What shapes toxin evolution towards signal transduction nodes and edges
  • Next generation gas flux measurements beyond eddy covariance
  • Angiotensin Converting Enzyme II
  • Why plants lost protein kinase C and changed other aspects of phospholipid signaling
  • How software designed radio could empower environmental sensor networks
  • Planetary hysteresis mechanisms on Earth and Mars
  • The origins of cellular electrical excitability
  • How the ribosome came to be

The Chemistry Prize

Fantastic news this morning as the Nobel Prize in Chemistry was awarded to Jennifer Doudna and Emmanuelle Charpentier for CRISPR gene editing. Story here. I’m proud that NSF’s Biological Sciences Directorate played an important role in supporting Dr. Doudna’s research through the Division of Molecular and Cellular Biology. Kudos to the winners and their funders.

Cell assemblies are memory traces…

This morning I had a fascinating video conversation with a former postdoc, now associate professor. We were talking about a neuroscience concept called the cell assembly–an idea that had its genesis in the lab of my Dad’s postdoc advisor, Donald Hebb at McGill University in the early 1950’s. Basically the idea goes something like this:

Memories, perceptions, concepts are all stored in the human brain via spatially-separated collectives of neurons that are bound together by their activity (firing action potentials). The pithy version of this goes: neurons that fire together, wire together.

In any case this allows individual neurons to participate in many such cell assemblies and the available cell assemblies based on the combinatorial mathematics of c. 86 billion neurons is very large. Further, these cells assemblies (think each containing perhaps 300 members) are very robust. With a symphony orchestra, you probably won’t notice any single instrument dropping out during Beethoven’s 9th symphony finale. Same with cell assemblies.

I am still very much struck by this construct of cell assemblies. As neuroscience has progressed, this is an idea that is very much evergreen.