Lisp, Smalltalk are the first family of important tech fading to oblivion due to time passing and corporate interest. Most people do not think them in such terms but they represent The Real Desktop tech, the user programmable flexible environment to live in to free the power of computing. Without it, like today, our civilization lost an immense opportunity. We need people that work to push desktop systems, single-applications flexible systems where anything is a function, easy to combine, change and extend as the user wish. Simple and powerful enough end users can use and change.
Domestic food production is another, far simpler, not that exiting, but still important: these days some children do not even know where came from something they eat. Without any catastrophic scenario any society need to know at least superficially anything essential to survive. This include for instance basic knowledge about tools for instance to grind and pack meat to make salami, tools to sterilize and store vacuumed foods etc new tools to modernize and made such process a pleasure to do.
Last but not least generic knowledge, generic tools. We have gazillions of hyper-specialist in any fields and veeeeery few able to see the big picture. We have gazillion of tools for doing a thing and only one. We need generic stuff. Standards not made like https://xkcd.com/927/ but made and updated to be useful and spread. This is the essence of most tech, including the generic desktops cited above, including solar panels with maaaany cells one after another, including bricks, simple thing we can use to made a wall, a house, a bridge, ... it's very hard to made anything in such domain, but it's tremendously useful once done. In the past we have seen some examples here and there, nowadays nobody care.
Domestic food production is another, far simpler, not that exiting, but still important: these days some children do not even know where came from something they eat. Without any catastrophic scenario any society need to know at least superficially anything essential to survive. This include for instance basic knowledge about tools for instance to grind and pack meat to make salami, tools to sterilize and store vacuumed foods etc new tools to modernize and made such process a pleasure to do.
Last but not least generic knowledge, generic tools. We have gazillions of hyper-specialist in any fields and veeeeery few able to see the big picture. We have gazillion of tools for doing a thing and only one. We need generic stuff. Standards not made like https://xkcd.com/927/ but made and updated to be useful and spread. This is the essence of most tech, including the generic desktops cited above, including solar panels with maaaany cells one after another, including bricks, simple thing we can use to made a wall, a house, a bridge, ... it's very hard to made anything in such domain, but it's tremendously useful once done. In the past we have seen some examples here and there, nowadays nobody care.