Protest in Vancouver, British Columbia Against Residential Tenancy Branch Ruling Involved with Eviction Proceeding of March 31st, 2025

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Originally Published on Vancouver’s City News Website

Is There a Fundamental Logic to Life?

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 by Matt Williams

One of the more daunting questions related to astrobiology—the search for life in the cosmos—concerns the nature of life itself. For over a century, biologists have known that life on Earth comes down to the basic building blocks of DNA, RNA, and amino acids. What’s more, studies of the fossil record have shown that life has been subject to many evolutionary pathways leading to diverse organisms. At the same time, there is ample evidence that convergence and constraints play a strong role in limiting the types of evolutionary domains life can achieve.

For astrobiologists, this naturally raises questions about extraterrestrial life, which is currently constrained by our limited frame of reference. For instance, can scientists predict what life may be like on other planets based on what is known about life here on Earth? An international team led by researchers from the Santa Fe Institute (SFI) addressed these and other questions in a recent paper. After considering case studies across various fields, they conclude that certain fundamental limits prevent some life forms from existing.

The research team was led by Ricard Solé, the head of the ICREA-Complex Systems Lab at the Universitat Pompeu Fabra and an External Professor at the Santa Fe Institute (SFI). He was joined by multiple SFI colleagues and researchers from the Institute of Biology at the University of Graz, the Complex Multilayer Networks Lab, the Padua Center for Network Medicine (PCNM), Umeå University, the Massachusetts Institute of Technology (MIT), the Georgia Institute of Technology, the Tokyo Institute of Technology, and the European Centre for Living Technology (ECLT).

Artist’s impression of Earth during the Archean Eon. Credit: Smithsonian National Museum of Natural History

The team considered what an interstellar probe might find if it landed on an exoplanet and began looking for signs of life. How might such a mission recognize life that evolved in a biosphere different from what exists here on Earth? Assuming physical and chemical pre-conditions are required for life to emerge, the odds would likely be much greater. However, the issue becomes far more complex when one looks beyond evolutionary biology and astrobiology to consider synthetic biology and bioengineering.

According to Solé and his team, all of these considerations (taken together) come down to one question: can scientists predict what possible living forms of organization exist beyond what we know from Earth’s biosphere? Between not knowing what to look for and the challenge of synthetic biology, said Solé, this presents a major challenge for astrobiologists:

“The big issue is the detection of biosignatures. Detecting exoplanet atmospheres with the proper resolution is becoming a reality and will improve over the following decades. But how do we define a solid criterion to say that a measured chemical composition is connected to life? 

“[Synthetic biology] will be a parallel thread in this adventure. Synthetic life can provide profound clues on what to expect and how likely it is under given conditions. To us, synthetic biology is a powerful way to interrogate nature about the possible.”

The sequence where amino acids and peptides come together to form organic cells. Credit: peptidesciences.com

To investigate these fundamental questions, the team considered case studies from thermodynamics, computation, genetics, cellular development, brain science, ecology, and evolution. They also consider previous research attempting to model evolution based on convergent evolution (different species independently evolve similar traits or behaviors), natural selection, and the limits imposed by a biosphere. From this, said Solé, they identified certain requirements that all lifeforms exhibit:

“We have looked at the most fundamental level: the logic of life across sales, given several informational, physical, and chemical boundaries that seem to be inescapable. Cells as fundamental units, for example, seem to be an expected attractor in terms of structure: vesicles and micelles are automatically formed and allow for the emergence of discrete units.”

The authors also point to historical examples where people predicted some complex features of life that biologists later confirmed. A major example is Erwin Schrödinger’s 1944 book What is Life? in which he predicted that genetic material is an aperiodic crystal—a non-repeating structure that still has a precise arrangement—that encodes information that guides the development of an organism. This proposal inspired James Watson and Francis Crick to conduct research that would lead them to discover the structure of DNA in 1953.

However, said Solé, there is also the work of John von Neumann that was years ahead of the molecular biology revolution. He and his team refer to von Neumann’s “universal constructor” concept, a model for a self-replicating machine based on the logic of cellular life and reproduction. “Life could, in principle, adopt very diverse configurations, but we claim that all life forms will share some inevitable features, such as linear information polymers or the presence of parasites,” Solé summarized.

The first implementation of von Neumann’s self-reproducing universal constructor. Three generations of machines are shown: the second has nearly finished constructing the third. Credit: Wikimedia/Ferkel

In the meantime, he added, much needs to be done before astrobiology can confidently predict what forms life could take in our Universe:

“We propose a set of case studies that cover a broad range of life complexity properties. This provides a well-defined road map to developing the fundamentals. In some cases, such as the inevitability of parasites, the observation is enormously strong, and we have some intuitions about why this happens, but not yet a theoretical argument that is universal. Developing and proving these ideas will require novel connections among diverse fields, from computation and synthetic biology to ecology and evolution.”

The team’s paper, “Fundamental constraints to the logic of living systems,” appeared in Interface Focus (a Royal Society publication).

Further Reading: Santa Fe InstituteInterface Focus

Originally Published January 2nd, 2025 at Universe Today.

Authored by: Matt Williams

Residential School History / Day of Truth and Reconciliation

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For a period of more than 150 years, First Nations, Inuit and Métis Nation children were taken from their families and communities to attend schools which were often located far from their homes. More than 150,000 children attended Indian Residential Schools. Many never returned.

The first church-run Indian Residential School was opened in 1831. By the 1880s, the federal government had adopted an official policy of funding residential schools across Canada. The explicit intent was to separate these children from their families and cultures. In 1920, the Indian Act made attendance at Indian Residential Schools compulsory for Treaty-status children between the ages of 7 and 15.

Assumption Hay Lakes school building
Assumption Hay Lakes school building
Assumption Hay lakes school building
Assumption Hay lakes school building

The Truth and Reconciliation Commission of Canada (TRC) concluded that residential schools were “a systematic, government- sponsored attempt to destroy Aboriginal cultures and languages and to assimilate Aboriginal peoples so that they no longer existed as distinct peoples.” The TRC characterized this intent as “cultural genocide.”

The schools were often underfunded and overcrowded. The quality of education was substandard. Children were harshly punished for speaking their own languages. Staff were not held accountable for how they treated the children.

St. Anthony's Sacred Heart building
St. Anthony’s Sacred Heart building
Crowfoot St. Joseph building
Crowfoot St. Joseph building

Coqualeetza Chilliwack School building
Coqualeetza Chilliwack School building

We know that thousands of students suffered physical and sexual abuse at residential schools. All suffered from loneliness and a longing to be home with their families.

The schools hurt the children. The schools also hurt their families and their communities. Children were deprived of healthy examples of love and respect. The distinct cultures, traditions, languages, and knowledge systems of First Nations, Inuit and Métis peoples were eroded by forced assimilation.

The damages inflicted by Residential Schools continue to this day.

For a great many Survivors, talking about their experiences in residential schools means reliving the traumas they experienced. For years, many told no one about what they had endured.

In 1996, the landmark Royal Commission on Aboriginal Peoples drew attention to the lasting harm that was done by the residential schools. A growing number of Survivors and their descendants came forward to tell their stories and demand action.

Through their courage and persistence, an eventual legal settlement was reached between Survivors, the Assembly of First Nations, Inuit representatives and the defendants, the federal government and the churches responsible for the operation of the school. The Indian Residential Schools Settlement Agreement included:

  •  A commitment to a public apology. On June 11, 2008 then Prime Minister Stephen Harper issued a formal Statement of Apology on behalf of Canada. The Apology stated that, “There is no place in Canada for the attitudes that inspired the Indian residential schools system to ever again prevail.”
  • Financial compensation to Residential School Survivors including a lump sum Common Experience Payment, the Independent Assessment Process for the most serious forms of individual abuse, and a Commemoration Fund.
  • The creation of the Truth and Reconciliation Commission to inform all Canadians about what happened in the Residential Schools by witnessing and documenting the truth of Survivors, families, communities and anyone personally affected by the Schools. The TRC issued an extensive report on the history of residential schools as well as Calls to Action and Principles of Reconciliation.

It is important to acknowledge that the Settlement Agreement was not comprehensive. The Métis Nation Survivors were not part of the Settlement Agreement. A separate settlement was reached with Survivors from Newfoundland and Labrador in 2016. A settlement agreement with Survivors of federal Indian Day Schools was not reached until 2019.

The NCTR is carrying on key aspects of the TRC’s work, including safeguarding and adding to the archive of Survivor statements and other records and building a registry of the thousands of children known to have died in residential schools.

In September 2020, Parks Canada announced that Residential Schools had been designated an event of national historical significance. Such designations mark aspects of Canadian history, whether positive or negative, that have had a lasting impact on shaping Canadian society.

The Canadian Parliament passed legislation, Bill C-5, to create a national day of commemoration to honour residential school Survivors and promote understanding of residential school history. The TRC called for such commemoration in its Calls to Action (Call to Action 80). The first National Day for Truth and Reconciliation took place September 30, 2021.

Article Originally in Print online:

https://nctr.ca/education/teaching-resources/residential-school-history/

Reference care of Homeless Hub which also employs a explanatory video: