What we live through today results in large part from decisions, behaviours and dynamics set in motion yesterday. What we will live through tomorrow is already being built in what we do today. The present carries the consequences of the past; the future will carry those of the present.
This continuity seems obvious as soon as it is stated. Yet it is often absent from the way we think, decide or act. We readily look at an event in the instant and react to its visible effects, while the causes that produced it may reach far back and the consequences of our responses may extend well beyond what we perceive immediately. This is a form of temporal myopia.
We see with precision what is near, urgent and immediately perceptible. Slow, gradual or delayed phenomena attract far less of our attention. A degradation may settle in over years before becoming evident. A decision may seem innocuous at the moment it is taken and produce significant effects much later. Our attention naturally favours what is happening now, while a large part of the real is built on far longer timescales.
Time forms a continuity of causes, effects, reactions, accumulations and, at times, bifurcations. A political decision may produce its consequences several years after being taken. An ecological transformation may remain unobtrusive for a long while before becoming visible. A way of producing, consuming, educating or organising a society may gradually settle in until it becomes a reality that the following generations will regard as normal.
We thus inherit situations constructed long before us. Past choices have left institutions, infrastructures, habits, economic relations and transformations of the living that still strongly influence what is possible today. This inheritance orients trajectories without making them immutable. The present remains a possible point of inflection. A dynamic can be corrected, slowed, reinforced or redirected. Each decision adds to what already existed and modifies — sometimes slightly, sometimes profoundly — the rest of the process. Some consequences appear immediately. Others take years to become visible.
This gap between the time of action and the time of consequences feeds our temporal myopia directly. Our societies often reinforce this tendency. Politics advances at the rhythm of electoral deadlines. The economy frequently rewards rapid results. The media follow immediate news. Social networks reward reaction, novelty and the emotion of the moment. In such an environment, slow phenomena easily stay in the background until their effects become hard to ignore.
We then reason in terms of events rather than trajectories. A fire is an event. The progressive drying-out of an environment is a trajectory. An economic crisis is an event. The accumulation of fragilities that precedes it is a trajectory. The local disappearance of a species is a visible event. The degradation of its habitat, the thinning of its resources and the fragmentation of its territory constitute a trajectory. When reflection begins at the moment of the event, part of the story has already unfolded.
Widening the view requires considering what came before as much as what may follow. Understanding a situation means seeking the mechanisms that made it possible, the dynamics that continue to feed it, and the effects that our present responses may in turn produce.
Long-term thinking also retains a share of uncertainty. The further the horizon recedes, the more interactions, bifurcations and unforeseen events make projections fragile. The task is then to read trajectories better, identify risks, preserve room for adaptation and avoid, as far as possible, choices whose consequences would become difficult to reverse.
This logic runs through our individual lives, through societies, the economy, the environment and the living world. We move forward in a world already shaped by earlier decisions while taking part, through our present choices, in the construction of what will come after us. The present carries the traces of the past and already contains a share of the future.
Nothing is entirely fixed, but nothing is without consequence either.