I doubt we’ll get that far before running out of resources (especially oil, which is necessary for pretty much everything even though not necessarily directly for space travel) and/or climate change ends mass-scale industrial society. Long term space travel is incredibly hard and it has a ton of effects on the human body, and solving those problems will be pretty low on our priority list when shit really hits the fan
Regarding the problem of running out of oil, I look at it a bit like, “we are a plant (biological plant)”.
The plant starts in a seed, which provides it with nutrients (energy) as some kind of starting bonus. It can use these nutrients to develop itself and live, but it will recognize that at some point it will run out of calories and die. So it has to do something about it. What it does, is to develop leaves. These leaves collect the sunlight and this way, the plant has a constant and continuous source of energy/calories. So it can keep on living.
Society has a very similar problem. We have oil, but it is limited. We can use it to develop, but eventually we’re gonna run out of it. So we have to do something about it. Just like a plant, we develop solar panels to collect the sunlight, so we have a continuous income of energy. This way we can live waaay beyond the time of our starting bonus.
You can’t replace petrochemicals with sunlight, let alone convert everything that runs on some form of oil product into eg. electric - not nearly enough rare earths in existence, and hydrogen is not the solution either for the majority for a variety of reasons (starting from ridiculously low energy density to being absolute ass to store)
I doubt we’ll get that far before running out of resources (especially oil, which is necessary for pretty much everything even though not necessarily directly for space travel) and/or climate change ends mass-scale industrial society. Long term space travel is incredibly hard and it has a ton of effects on the human body, and solving those problems will be pretty low on our priority list when shit really hits the fan
Regarding the problem of running out of oil, I look at it a bit like, “we are a plant (biological plant)”.
The plant starts in a seed, which provides it with nutrients (energy) as some kind of starting bonus. It can use these nutrients to develop itself and live, but it will recognize that at some point it will run out of calories and die. So it has to do something about it. What it does, is to develop leaves. These leaves collect the sunlight and this way, the plant has a constant and continuous source of energy/calories. So it can keep on living.
Society has a very similar problem. We have oil, but it is limited. We can use it to develop, but eventually we’re gonna run out of it. So we have to do something about it. Just like a plant, we develop solar panels to collect the sunlight, so we have a continuous income of energy. This way we can live waaay beyond the time of our starting bonus.
You can’t replace petrochemicals with sunlight, let alone convert everything that runs on some form of oil product into eg. electric - not nearly enough rare earths in existence, and hydrogen is not the solution either for the majority for a variety of reasons (starting from ridiculously low energy density to being absolute ass to store)