> No one have ever traveled inside the Earth before.
> Scientists know exactly what's inside and what it's made of.

mathematics

Literally all of it, at least if you look at the theoretical side of things

>>16707025 (OP)
Earthquakes travel as clear and measurable speeds. This tells you the core of earth is liquid. We also know this liquid must be hot. For fucks sake we literally see lava get ejected out of volcanoes. You have to be a grade A retard to claim we don't know how that's inside the Earth.

>>16707025 (OP)
As measurement gets better, we can "view" it more clearly. This is just the progress of technology.

>>16707025 (OP)
Nearly all of it. We know extremely little with certainty.

>>16707029
Wrong we have no idea

>>16707025 (OP)
So much this. We can only know consciousness. Everything is just your consciousness.

That isn’t unique to science it’s a consequence of our limited human experience (the flesh and blood) We can only know so much before we die. What remains unknown vastly dwarfs what we know.

It's sort of a nonsense question. As others pointed out, existence in this world requires making certain assumptions about it.

The question should be about "how speculative are certain fields?" And the answer is almost universally going to be "less than you probably think." Extracting knowledge about something just doesn't always require it be done the way you, personally, want it to be done.

100% from a purely philosophical standpoint. But even in realistic, practical terms, a lot. There is no confidence that model of the is literally correct.

>i dont know nothing about this subject so ill say that scientists are inventing stuff about it on /sci/ so i'll get attention

Literally reading one wikipedia page (https://en.m.wikipedia.org/wiki/Earth%27s_inner_core) would tell you how scientists have deduced the earths inner structure you retarded faggot

Nobody can take a gold atom under a microscope and see that there's exactly 79 protons there. And yet scientists claim to know that for sure. This is what makes science fascinating. We can discover things which can not be seen.

>>16707025 (OP)
>scientists know
Scientist lie about the function of field effects because for some reason standing on an empty ball hurts their noggins.

>>16707029
>This tells you the core of earth is liquid.
Not entirely true
>We also know this liquid must be hot.
Being hot is no guarantee it is liquid.
>For fucks sake we literally see lava get ejected out of volcanoes.
That is from the mantle, not the core.
You make far too many assumptions.

>>16707025 (OP)
A combination of compounding theory and improving measurement technology makes the speculations better and better usually.