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Is a facial recognition system a neutral tool that can be used for security or surveillance, or does its very design embed values that shape how society is policed? This question captures the central tension in the ethics of technology: whether technology is morally neutral—a mere instrument for human ends—or inherently value-laden, carrying ethical and political significance in its own architecture. Over the past century, philosophers have developed a series of frameworks addressing this tension, moving from broad philosophical stances to concrete design and policy methods. The sequence reveals not a simple replacement of older ideas by newer ones, but a field of living disagreements about where technology's moral weight lies and how to respond.
For much of the early twentieth century, the dominant view was instrumentalism: technology is a neutral instrument, a tool whose moral character depends entirely on how humans use it. A hammer is neither good nor bad; the same hammer builds a house or breaks a window. This view resonated with commonsense experience and aligned with a progressive faith that new technologies simply amplify human capacities. Instrumentalism allowed society to focus on controlling uses rather than questioning the technologies themselves. Yet its limitations became apparent as critics argued that the very design of some technologies—such as nuclear weapons or centralized power grids—seemed to carry social and political consequences regardless of anyone's intentions. The sheer scale and autonomy of modern technical systems began to strain the instrumentalist framework.
Substantivism emerged in the mid-twentieth century as a direct challenge to instrumentalism. Thinkers such as Jacques Ellul and Langdon Winner argued that technology is not neutral but embodies its own logic—a drive for efficiency, control, and expansion that reshapes society in its image. Ellul's concept of "technique" portrayed modern technology as an autonomous force that absorbs all human activities into a calculative, means-ends rationality. Winner's famous example of the low-hanging bridges over Long Island parkways, designed to exclude buses carrying poor and minority populations, showed how artifacts could have political content built into their physical form. Substantivism replaced the instrumentalist view by insisting that technologies themselves carry moral significance, not just their uses. This framework remains influential today, especially in critiques of AI and automation that argue these systems enforce a particular rationality on human life.
Substantivism raised a pressing question: if technology embodies values, how should we understand that embodiment? Two frameworks that both emerged around 1990 offered contrasting answers. Critical Theory of Technology, developed by Andrew Feenberg, took a social and political approach. Drawing on Marx and the Frankfurt School, Feenberg argued that technology is not a monolithic force but a contested terrain shaped by power struggles. Technology can be redesigned democratically to serve human needs rather than the imperatives of capital or efficiency. Critical Theory thus preserved the substantivist insight that values are embedded in technology, but rejected the idea that those values are fixed or autonomous. Instead, it introduced a political dimension: technology is a social construction open to transformation through democratic participation.
Postphenomenology, associated with Don Ihde, offered a different diagnosis. Rather than focusing on social power, postphenomenology examined how technologies mediate human experience. A pair of glasses is not a neutral tool but changes how we see the world; a smartphone restructures our perception of time and relationships. Ihde and his followers argued that technology shapes the human-world relation from within lived experience, not just through abstract social forces. This framework narrowed the substantivist focus by emphasizing the concrete, embodied interactions between humans and technologies. Postphenomenology coexists with Critical Theory as a complementary approach: the former examines micro-level mediation, the latter macro-level power.
The 1990s also saw the emergence of frameworks that moved from diagnosing technology's moral character to actively shaping it. Value-Sensitive Design (VSD), pioneered by Batya Friedman and others, grew out of the substantivist insight that values are embedded in artifacts. VSD provides a method for incorporating ethical values—such as privacy, autonomy, and justice—into the design of technologies from the start. It involves conceptual, empirical, and technical investigations to identify stakeholders and translate their values into design requirements. VSD narrows the philosophical breadth of Critical Theory and Postphenomenology into a practical engineering tool, applicable in fields like human-computer interaction and AI ethics.
Responsible Research and Innovation (RRI) emerged around 2000 as a governance-oriented extension of the same impulse. Rather than focusing on artifact design, RRI addresses the processes of research and innovation themselves. It calls for anticipation, reflection, inclusion, and responsiveness in scientific and technological development, aiming to align innovation with societal values. RRI shares with VSD the commitment to making values operational, but it targets policy and institutional frameworks rather than individual artifacts. Both frameworks represent a narrowing of earlier critical traditions into actionable methodologies, while preserving the core substantivist premise that technology is not value-neutral.
Today, the six frameworks coexist with a rough division of labor. Instrumentalism lingers as a default public view, but among scholars it is largely rejected in favor of more nuanced positions. Substantivism remains a powerful critical lens for analyzing systemic effects of large-scale technologies. Critical Theory and Postphenomenology offer complementary analyses of power and experience. VSD and RRI dominate applied ethics of technology, especially in fields like AI, data privacy, and sustainable innovation.
There is broad agreement that technology is not morally neutral—that design choices encode values and shape human lives. However, deep disagreements persist over the source of those values. Is technology's moral significance rooted in autonomous systemic forces (Substantivism), in social power struggles (Critical Theory), in embodied experience (Postphenomenology), or is it something we can deliberately design into artifacts (VSD, RRI)? This debate is particularly heated in AI ethics, where questions about algorithmic fairness, autonomy, and accountability force scholars to choose between competing frameworks. The ethics of technology remains a field of living disagreement, where the tension between technology as tool and technology as fate continues to drive inquiry.