This is a critique of how designers deal with contending histories and multiple presents in design to speculate about socio-technical futures. The paper unpacks how embedded definitions and assumptions of temporality in current design tools contribute to coloniality in designed futures. As design practice becomes implicated in how oppression extends from physical systems to global digital platforms, our critique rejects the notion that it is only AI that needs fixing and it dissects the Futures Cone used in speculative design to make these issues visible. As an alternative, we offer a hauntological vocabulary to aid designers in reorienting their speculative tools and accommodating pluriversality in anticipatory futures. To illustrate the benefits of the proposed metaphors, we highlight examples of coloniality in digital spaces and emphasize the failure of speculative design to decolonize future imaginaries. Using points of reference from hauntology, those that engage with uncertain states of lingering or spectrality, and notions of nostalgia, absence, and anticipation, this paper contributes to rethinking the role that design tools play in colonizing future imaginaries, especially those pertaining to potentially disruptive technologies.
We investigated the effects of reflex-based self-defence training on police performance in simulated high-pressure arrest situations. Police officers received this training as well as a regular police arrest and self-defence skills training (control training) in a crossover design. Officers' performance was tested on several variables in six reality-based scenarios before and after each training intervention. Results showed improved performance after the reflex-based training, while there was no such effect of the regular police training. Improved performance could be attributed to better communication, situational awareness (scanning area, alertness), assertiveness, resolution, proportionality, control and converting primary responses into tactical movements. As officers trained complete violent situations (and not just physical skills), they learned to use their actions before physical contact for de-escalation but also for anticipation on possible attacks. Furthermore, they learned to respond against attacks with skills based on their primary reflexes. The results of this study seem to suggest that reflex-based self-defence training better prepares officers for performing in high-pressure arrest situations than the current form of police arrest and self-defence skills training. Practitioner Summary: Police officers' performance in high-pressure arrest situations improved after a reflex-based self-defence training, while there was no such effect of a regular police training. As officers learned to anticipate on possible attacks and to respond with skills based on their primary reflexes, they were better able to perform effectively.
