• TheMadFool
    13.8k
    Dark matter fits the bill. It doesn't interact electromagnetically at any frequency, it's only detectable as extra gravitational attraction.

    https://en.wikipedia.org/wiki/Dark_matter
    fishfry

    :up: :ok: I'm familiar with the concept although only in very superficial terms. I'm told that the existence dark matter was hypothesized after normal matter failed to account for certain features of galactic spin behavior.
  • 180 Proof
    15.4k
    :up:

    No amount of philosophical theorizing could possibly give us knowledge of the actual world.fishfry
    Why do so many (on these fora) fail to understand this?
12Next
bold
italic
underline
strike
code
quote
ulist
image
url
mention
reveal
youtube
tweet
Add a Comment

Welcome to The Philosophy Forum!

Get involved in philosophical discussions about knowledge, truth, language, consciousness, science, politics, religion, logic and mathematics, art, history, and lots more. No ads, no clutter, and very little agreement — just fascinating conversations.