David Rolfe Graeber (/ˈɡreɪbər/; February 12, 1961 – September 2, 2020) was an American anthropologist and anarchist activist. His influential work in economic anthropology, particularly his books Debt: The First 5,000 Years (2011), Bullshit Jobs (2018), and The Dawn of Everything (2021), and his leading role in the Occupy movement, earned him recognition as one of the foremost anthropologists and left-wing thinkers of his time.
Yes, science is complex, infrastructure is complex.
these are not "loosely connected groups", it's not a group of friends doing a party, it's a complete industry.
thing is to change relations in production and to work according to needs and with solidarity towards each other and other communities. try to look at it as complete system, not just pinhole view at just scientists interested in particles or whatever scifi there is. that federated system would have to solve food, housing, medicine, education and through solving that and enabling others to work in fields they are interested in would in the end enable space travel, or whatever scifi other there is.
i would say that within that system it would be easier to develop science and more pleasant and beneficial to society than in current capitalist one