[__sy__]

For the wetter sciences, the answer is somewhere in between. We usually have somewhat of an understanding of the prior theory. We then throw a lot of stuff at the wall…. Oh, this sticks? Eh, why? And then usually some more clever person will come up with reasons for why X works beyond what we already knew. A few years later, the field reaches some sort of consensus around one of the hypothesis.

[tdehnel]

The “oh this sticks” part is only ever interesting precisely because it doesn’t conform to the pre existing theory.

You cannot even make an observation without theories baked in:

- Normally these things do X

- My senses or instruments are detecting reality accurately

- This thing I’m measuring will result in something interesting etc

[s1artibartfast]

This is only true from the perspective of developing new theories for why are things happen. Of course new theories arise from other theories.

It's not true for Discovery in general. New phenomenon can be created and observed without any theory for why they occur, either before or after observation

[tdehnel]

You can't even observe something without theories. For example:

- I need to observe here and not anywhere else

- I can reliably interpret my senses/the instrumentation is working correctly

- Objects of this type normally behave in X way, because of Y

- etc

Think of it a different way. You can come up with a theory without any observation whatsoever. Black holes, for example, were conjectured well before they were observed.

[s1artibartfast]

Well sure, that's the point that you're trying to make. I thought anything most people felt you were claiming you need a theory related to the novel Discovery or convention. That is to say how it might work and what the expected outcomes are. I can't go to the lab without a theory that my car can get me there. That doesn't mean I have a hypothesis for what will happen when I mix two substances in the lab.

Thinking that something will either happen or not happen if I mix those two substances is not a theory.

[tdehnel]

> Thinking that something will either happen or not happen if I mix those two substances is not a theory.

OK I'll bite. What is it then?

[s1artibartfast]

Nothing, just words that don't have any predictive value or convey any understanding of the world.

Maybe an example would help clear things up. go into the lab with a 1 lb weight and a 2 lb weight and weigh them together.

Saying that the total weight could either equal 3 lb or any value other than 3 lb does not constitute a predictive theory for how the physics of summing Mass works.

It might be a theory that a scale display a value when I put things on top of it, but that is a different topic, and not what I'm testing.

This Theory doesn't tell me how the world works and if the expected value is 0 lb, 3 lb, or 1 million pounds.

I could go into the lab with no operating Theory or hypothesis on what the value of two masses should be when added together and collect data.

I can collect data with no expectation of correlation, and after measuring the combination of many weights, deduce that there is a relation between the combined weights and the total mass, and in fact it is a simple sum.

[mrguyorama]

Consider the story of an artificial sweetener being discovered by a chemist who didn't wash their hands properly and the bread they ate that night was sweet.

Are you suggesting this was only possible because they had a "theory" that bread is not sweet?

[tdehnel]

yes, that is one good example