Φ-Geo is a research group dedicated to exploring topics in the philosophy of the geosciences (historical and current Earth sciences), broadly understood. Areas of research pursued by Phi-Geo members include epistemological, methodological, and metaphysical issues in geochronology, paleontology, paleobiology, ecology, paleoanthropology, geomorphology, climate & paleoclimate studies, and especially issues related to philosophy of modeling and philosophy of data. Below you will find group member bios, recent publications, and news.
Director of Research Group:
Dr. Alisa Bokulich
Alisa is currently writing a new book Measuring the Earth and Reconstructing Deep Time: Philosophical Issues in Data, Modeling, & Uncertainty, which draws on conceptual and methodological issues in geomorphology, stratigraphy, paleontology, and geochronology, with chapters on issues related to models, data, uncertainty, typification, and the philosophy of geologic time. For further details see her bio and research pages. She pronounces her name ‘uh-LEE-suh’ ‘BEAU-coo-litch’. (Photo from Joggins Fossil Cliffs in Nova Scotia)
Faculty Members of Phi-Geo Group:
Current Graduate Student Members
Leticia Castillo Brache
lcbrache@bu.edu
Leticia is interested in ethical issues in the geosciences, philosophy of climate science, paleoclimate proxies, and issues related to justice and values in climate adaptation & mitigation, especially for indigenous populations. She is currently writing her dissertation on “Hidden Narratives in Geoscientific Research: Towards Developing more Ethical Practices.” She is also interested in philosophy of biology particularly in animal consciousness and conservation biology. Some of her other interests are in feminist philosophy and Latin American philosophy, especially issues regarding identity. (She pronounces her name ‘Luh-TEE-see-ah’ ‘Cas-TEE-yo’ ‘Bruh-CHeh’.)
Matilde Carrera
mcarr@bu.edu
Matilde is joining us as a new philosophy graduate student from the University of Pisa and Scuola Normale Superiore of Pisa. She was a participant in the Summer School in Foundations of Quantitative Paleontology at the University of Helsinki and a participant in the School of Palaeoanthropology at the Università degli Studi di Perugia. She is particularly interested in the philosophy of paleoanthropology. In addition to the philosophy of paleosciences, she has interests in the philosophy of scientific explanation.
Matt Brewer
https://matt-brewer.net/
brewer@bu.edu
Matt is a PhD Candidate in the philosophy department at BU. His research is in the philosophy of the geosciences, with a focus on scientific practices that make use of the theory of plate tectonics (e.g., geology, geomorphology, and geophysics). His interests include geoscientific methodology, explanation, measurement, and theory pursuit. He is currently writing his dissertation, tentatively titled, “Evidence, Classification, and Explanation: Towards a Philosophy of Plate Tectonics.” In addition to the philosophy of science, he is also interested in Ancient philosophy.
Kailyn Smith
https://sites.google.com/view/kailynsmith/academia
Kailyn is beginning graduate student in Philosophy, interested in the History & Philosophy of Science.
Current Undergraduate Members:
Recent PhD Students now Affiliated Faculty Members
Federica Bocchi
Federica’s PhilPeople Profile
fbocchi@bu.edu
Federica is a postdoctoral researcher at the Section for History & Philosophy of Science at the University of Copenhagen. She earned her doctoral degree from Boston University in 2023 with a dissertation titled “Philosophy of Biodiversity: Conceptual and Practical Issues in Measurement, Data, and Conservation” under the supervision of Alisa Bokulich. Federica’s work focuses on measurement practices in biodiversity and paleodiversity sciences. She is interested in the epistemic and methodological advantages and limitations of diversity metrics and the societal implications of values embedded within these measurements.Federica’s future projects include a philosophical investigation of taxonomic consensus within environmental policies and the possibility of democratizing conservation in collaboration with local communities. (She pronounces her name ‘Feh-deh-REE-kah’ ‘BOKE-key.’)
Dr. Aja Watkins
https://www.ajawatkins.org/
Aja’s Google Scholar Profile
ajawatki@bu.edu
Aja Watkins is starting as an Assistant Professor in Philosophy at University of Wisconsin, Madison in Fall of 2023. She is primarily interested in epistemological issues in the historical sciences, such as paleontology and paleoclimatology, as well as related topics in philosophy of biology and philosophy of the earth sciences more broadly. She recently defended her dissertation “Forecasts from the Deep Past: Using Paleoclimate Analogs to Inform Climate Projections”, which is on how we can use the paleoclimate as an analogue model for contemporary climate change. Aja’s other recent work touches on the topics of developmental biology, microbiology, and feminist philosophy of science. (She pronounces her first name ‘ASIA’.)
Dr. Katherine Valde
Website Katherine Valde is an Assistant Professor of Philosophy at Loyola University, Chicago. She works primarily in the philosophy science, philosophy of biology, and historical sciences, including a specific interest in the relationship between fossil and molecular clocks in the measurement of geologic time. (She pronounces her last name ‘Vahl-Dee’.)
Affiliated & Visiting Graduate Students & Postdoc Members
Sarah Black
https://www.bu.edu/earth/profiles/black/
Sarah is a PhD student in BU’s Earth & Environment Department, working on coastal geomorphology and sedimentology. She holds a B.A. in Philosophy from Boston University and also has interests in the philosophy of geosciences.
Junjie (JJ) Dong
https://www.junjiedong.xyz/
JJ is a Postdoc at the Caltech Center for Comparative Planetary Evolution (3CPE). He received his Ph.D. in Earth & Planetary Sciences at Harvard, with a secondary field in History of Science. His research focuses on the fundamental properties of planetary interiors under high-pressure conditions. When he is not debugging code or running lab experiments, you can find him in archives writing about the history of geophysics, where he aims to uncover stories that provide insight into the epistemic cultures and practices that define our scientific community today. He is currently writing an article on the intellectual history of the modern model of the Earth’s interior.s a Postdoc at the Caltech Center for Comparative Planetary Evolution (3CPE). He received his Ph.D. in Earth & Planetary Sciences at Harvard, with a secondary field in History of Science. His research focuses on the fundamental properties of planetary interiors under high-pressure conditions. When he is not debugging code or running lab experiments, you can find him in archives writing about the history of geophysics, where he aims to uncover stories that provide insight into the epistemic cultures and practices that define our scientific community today. He is currently writing an article on the intellectual history of the modern model of the Earth’s interior.
Recent Undergraduate Members:
Adam King
Adam is currently an undergraduate philosophy major at BU. He is interested in scientific and ethical problems related to the environment and geology. In the past, he worked on a project focussing on human-induced antibiotic resistance in Massachusetts waterways. Currently, Adam is working on a senior thesis on the implications of data discordance, using tree-rings and climate models as a case study.
Gloria Grand-Pierre
Gloria recently graduated from BU, majoring in Philosophy and Political Science. She is interested in the philosophy of science, environmental issues, and how past mass extinctions can inform us about endangered species today. Her other research has been focused on political philosophy, where she examines topics such as civil disobedience and theories of utopia. She is also interested in Africana philosophy and Feminist philosophy that specifically explores the existential significance of race and gender. She has received a UROP grant this year to pursue her research project on “Are We in a 6th Mass Extinction? What Past Mass Extinctions Can Teach Us”. (She pronounces her last name ‘Grahn-Pea-Air’.)
Henry Liu
Henry recently graduated from BU, majoring in Advertising from the College of Communication. Henry is interested in the philosophy of paleontology, especially with issues of underdetermination in the fossil record, interpretations of unique structures of extinct lifeforms, and the evolution of first life. His passion stems from paleontology, and he created and has managed the Eons Ago Instagram account for over four years to showcase his extensive fossil collection. His recent work includes an interpretation for trilobite anterior cephalic projections through analogous modern arthropods.
Recent Publications from Φ-Geo Group:
Federica Bocchi, Alisa Bokulich, Leticia Castillo Brache, Gloria Grand-Pierre, Aja Watkins (forthcoming) “Are We in a Sixth Mass Extinction? The Challenges of Answering and Value of Asking” British Journal for the Philosophy of Science. 
- Bokulich, A. (2021) “Taming the Tyranny of Scales: Models and Scale in the Geosciences” Synthese
- Bokulich, A. (2020), “Towards a Taxonomy of the Model-Ladenness of Data” Philosophy of Science 87 (5): 793-806. (A paper exploring the different ways theoretical and simulation models are used in the production of data sets in the geosciences.)
- Bokulich, A. (2020), “Understanding Scientific Types: Holotypes, Stratotypes, & Measurement Prototypes“ Biology & Philosophy 35, 54 (2020). https://doi.org/10.1007/s10539-020-09771-1
- Watkins, A. (forthcoming), “The Epistemic Value of the Living Fossils Concept,” Philosophy of Science, Proceedings PSA 2020-21.
- Bokulich, A. (2020), “Calibration, Coherence, and Consilience in Radiometric Measures of Geologic Time” Philosophy of Science 87 (3): 425-456.
Φ-Geo Group News
- Read our latest Fall 2024 Phi-Geo Group News
Congratulations to Phi-Geo grad Leticia Castillo Brache on successfully defending her Ph.D. dissertation on “Hidden Narratives in Geoscientific Research: Toward Developing More Ethical Scientific Practices”!
Congratulations to Phi-Geo grad Federica Bocchi on successfully defending her dissertation on “Philosophy of Biodiversity: Conceptual & Practical Issues in Measurement, Data, & Conservation”! She takes up a fabulous postdoc at the University of Copenhagen.
Congratulations to Phi-Geo grad Aja Watkins on successfully defending her dissertation “Forecasts from the Deep Past: Using Paleoclimate Analogs to Inform Climate Projects”! She will be taking up a tenure-track job Fall 2023 as Assistant Professor in the Philosophy Department at U Wisconsin, Madison.
- Phi-Geo Group members presenting at “The Future of the Past: Philosophical Issues in the Historical Sciences” Aug 8-9, 2022; check out the talks by Matilde, Leticia, Aja, & Federica (& keynote by Alisa)
- Aja & Alisa delivered talks at the Measurement at the Crossroads Conference in Milan, Italy in June, 2022 and the Society for the Philosophy of Science in Practice (SPSP) in Ghent, Belgium in July 2022.
- Federica, Aja, & Alisa will be speaking at the upcoming European Philosophy of Science Association biennial meeting at Univ. of Turin (Italy) 15-17 September, 2021 https://philsci.eu/EPSA21
- Aja will be giving a talk on “Analogue Models in Paleontology” at the International Society for the History, Philosophy, & Social Studies of BIology biennial meeting (online) https://www.ishpssb.org/meetings/ishpssb2021
- Alisa has been named a Fellow of the Radcliffe Institute for Advanced Study at Harvard University for the 2021-2022 year to complete her book project Philosophy of the Geosciences: Data, Models, & Uncertainty https://www.radcliffe.harvard.edu/people/alisa-bokulich
- Federica’s presentation ‘The Influence of Processual Ontology and Deep Time Literacy on Conservation: the case of the Kruger National Park’ has been accepted for the British Society for the Philosophy of Science conference (online) 7-9 July http://www.thebsps.org/news/bsps-2021-annual-conference-at-the-university-of-kent-7-9-july/
Leticia’s presentation paper on “Forward & Inverse Modeling in the Production of Paleoclimate Data” has been accepted for presentation at the Integrated History & Philosophy of Climate Data conference, August 25-27 in Bern, Switzerland. https://www.oeschger.unibe.ch/ihpcd2021
Congratulations to Henry, whose awesome dinosaur discovery is a featured story in BU Today!
Congratulations to our undergrad member Gloria on receiving a $1,300 Student Research Award to pursue her project “Are We in a 6th Mass Extinction? What Past Mass Extinctions Can Teach Us”!
Our graduate students Federica and Aja have been accepted to the week-long interdisciplinary Summer School on Quantitative Palaeontology, organized by Professor Indrė Žliobaitė (U of Helsinki). They are very much looking forward to exploring issues at the intersection of paleontology, fossil data, philosophy of science, and data science.
- We are thrilled to announce that Aja has received one of the highly competitive 2020 National Science Foundation NSF Graduate Research Fellowships, which will support her graduate studies over the next 3-5 years.
Alisa’s PSA Symposium session on “Reconstructing Geologic Time” has been accepted for PSA 2021, Nov. 11-14, in Baltimore:
Abstract: The aim of this symposium is to explore some of the key philosophical issues involved in the reconstruction of geologic time. It will address methods for synchronizing the imperfect clocks of geologic time (Katherine Valde, Wofford College), strategies for reconstructing time from the missing stratigraphic record (Alisa Bokulich, BU), conventionality versus naturalness in delimiting the units of geologic time (Joeri Witteveen, University of Copenhagen, Denmark), methodological insights from shallow-time stratigraphy (Carlos Gray Santana, University of Utah), and the high scientific and social costs of failing to recognize the Anthropocene as a formal unit of the GTS (Hernán Bobadilla, University of Vienna, Austria).
Current Faculty Collaborators:
Website Patrick Forber is an Associate Professor in philosophy at Tufts University. He works primarily on philosophy of biology, with a specific interest in the ways we can use formal evolutionary models to facilitate inquiry into and reconstruction of the deep past.Dr. Wendy Parker
Website Wendy Parker is a Professor of Philosophy at Virginia Tech. She works on philosophy of climate science, especially issues related to modeling, computer simulation, data, measurement, and evidence. She is a contributing author for the 6th Assessment Report of the Intergovernmental Panel on Climate Change — IPCC Working Group I, a member of the recently-formed US CLIVAR Ocean Uncertainty Quantification Working Group, and she is Co-Editor-in-Chief of the British Journal for the Philosophy of Science
Alisa N. Bokulich 
You must be logged in to post a comment.