| Emerging irreversibility (47) |  |
| Irreversibilities (23) | |
and the path enters into irreversibility. This model argues that a path comes into existence behind the backs of all actors concerned
'14 Irreversibilities grow over time, shaping and being shaped by the historical affordance structures which guide path dynamics.
and measuring lab-on-a-chip of increasing irreversibility in the emergence of nanotechnology paths.
Sci. 17 (2)( 1987) 257 293.44 M. Callon, Techno-economic Networks and Irreversibility, in: John Law (Ed.),A Sociology of Monsters?
irreversibilities are solidified further in configurations that work 30. The concept of configuration that works applies to artefacts and systems,
including irreversibilities that arise. This is the task of scenario builder. Coupling endogenous futures with characteristics of innovation journeys (from historical case studies) within the framework of the IC+framework helps us structure the complexities
and larger lock ins (irreversibilities) which constrain such actions and impact on unforeseen or sub-optimal trajectories of socio-technical developments.
Irreversibilities are visible already. There is a lock in around RRI in the focus on HES issues. This would have consequences for other elements as resources are shifted away from them (path dynamics.
Studies in Making Sociotechnical Order, Walter de Gruyter, Berlin New york, 1998.22 M. Callon, Techno-economic networks and irreversibility, in:
Our key concept is the notion of irreversibilities that emerge in the ongoing activities of researchers, institutes, policy makers and firms.
we will show that it is possible to trace the emerged irreversibilities. To conclude, we will discuss how the analysis of early dynamics is a vital ingredient of technology assessment studies that,
Irreversibility; Technology assessment; Expectations; Agenda building 0040-1625/$-see front matter D 2005 Elsevier Inc. All rights reserved. doi:
Irreversibilities that emerge, enable and constrain actors in a sense that actors experience more or less resistance for different options they try to explore
In time the emergence of irreversibilities results in some options becoming more dominant over others, and subsequently, a technological path could emerge.
An irreversibility is something that cannot be undone easily, and when actors try to achieve something that go against the irreversibility,
they become aware that it is impossible, or at least requires a lot of effort. Therefore, emerging irreversibilities are constraining.
On the other hand, when actors try to achieve things in line with the irreversibility, the actor can rely on some predictability to improve the chances of his strategy,
This perception of irreversibility (bwe cannot achieve this due to...Q) could be proved false when an actor has the intention to test the irreversibility,
i e. tries actions or interactions that go against it. These actions can strengthen (confirm) or weaken the irreversibility depending on the outcome of the behaviour of the actor.
In addition, irreversibilities often emerge behind the backs of the actors, i e. without awareness of the actors.
For instance, the growing attention for a certain subject is an indicator for an emerging irreversibility. Fig. 1 shows the growing attention in journals for a certain topic and indicates that the term dnanotubest was used increasingly in the titles of scientific articles (extracted from the Picarta database.
In contrast to the mechanical time of physical sciences, the Bergsonian‘durée'of living processes therefore has direction and irreversibility.
On the left-hand side, time is the creator of irreversibility and novelty. In other words, the left-hand side is the generator of innovations,
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