It seems the more advanced we get, the farther back we go with our outlook of our future lives because of the discord that is going on around us!
I suspect that this has always been the case.
They may be some other things to discover...not sure if they will be recognized right away. It took decades for people to figure out how important some discoveries were...chemistry in particular took hundreds of years, from medieval alchemists and wizards to the chemists of today.
That is true enough. There was a good deal of time between the initial discovery of electricity and someone actually figuring out that it could perform work for us. I believe that there are some fundamentals we have yet to really explore and master. Gravity comes to mind. We know that gravity exists and yet we still have no real idea of how it actually works beyond some theoretical mathematics.
For example we know that an intense gravity such as that associated with a "black hole" bends space itself. We think of space as just an empty void; basically nothingness. Common sense says one can't bend nothing, so space must actually be made of something. What? That could be one of the most fundamental discoveries of all time. Or a dead end. Who knows?
I imagine you'll be extremely glad to know that this year a team of scientists in Tokyo will be attempting to engineer the same events that led to the Big Bang in a 'controlled environment'
I've read about this and some similar experiments. Looks like an exercise in scientific oddity to me, but who knows?
When I was a boy, I fully expected we'd be building interstellar spaceships, travelling through time and flying in anti-grav cars by now.
Now you're hitting on my whole point. If fire and electricity really are the peaks of fundamental discoveries these things will never happen. The bulk of our technology over the past several decades has been to simply improve upon the use of electricity. It has brought us some pretty amazing things like computers, cell phones, and microwave ovens, but it's all just refinement of a basic concept. Where's the new concept that will make the things you mentioned possible? Is there one?