Speculation used in a sentence

Speculation in a sentence as a noun

I tried googling for relevant information, but wasn't able to find anything more than speculation at the time.

Engaging in a wild HN thread, full of well meaning but varied techy suggestions/speculation might not be the best approach right now. Have some friends sift through it for good information and disengage.

I have no knowledge of Zynga's current internal state - the following is entirely speculation.=================================There are many forces at work here that need to be brought to light.

You can see from the disconnect between hashrate, difficulty and price that a large part of Bitcoin price and market movement is speculation and emotion driven.

"This part of your response is mostly a characterization of the commentator based on your own speculation about whether he's worked at Zynga or met Mark Pincus.

You remember your PW or can prove to EA you're the account owner There's not much history to base this speculation on yet, but what little we do have shows that that's an extremely unlikely scenario.

Can I just for a moment question their PR strategy here?Them saying they have found something big leads to speculation, speculation that might paint the image of an discovery much bigger than what was actually discovered.

It's difficult to know how much of this story is speculation vs fact - whether or not the yellow badged employees are really data entry, whether there are really instructions on the back of the badge with a number to call if someone starts asking questions.

Can you find one of these vulnerabilities, or evidence of the NSA having attacked a particular system to steal keys?----[Edit 1] Some speculation:By careful hardware design -- and lots of it -- the NSA may be able to find keys large enough that we would be mildly surprised but not shocked.