How to draw a line between observation and minds? [duplicate]

This question already has an answer here:

When talking about quantum mechanics, a lot of people make the (pseudo-scientific?) argument that minds are required to collapse the wave function (and therefore, minds are important, we are back on the center of the universe, etc, etc)

Then, people who do study quantum mechanics say it has nothing to do with mind (wherever that is), it has to do with observation, even if mechanical observation.

OK. What I don't understand is: what if we consider the "mechanical observation device" to be part of the experiment? Just a lot of pieces of matter that are also the object of study of the experiment. Then what is happening? What is exactly causing the collapse? Doesn't that bring minds back into the game, or I am just being naive, new-age, etc?

marked as duplicate by ZeroTheHero, Chair, John Rennie quantum-mechanics StackExchange.ready(function() { if (StackExchange.options.isMobile) return; $('.dupe-hammer-message-hover:not(.hover-bound)').each(function() { var$hover = $(this).addClass('hover-bound'),$msg = $hover.siblings('.dupe-hammer-message');$hover.hover( function() { $hover.showInfoMessage('', { messageElement:$msg.clone().show(), transient: false, position: { my: 'bottom left', at: 'top center', offsetTop: -7 }, dismissable: false, relativeToBody: true }); }, function() { StackExchange.helpers.removeMessages(); } ); }); }); Sep 11 '18 at 9:17

• You are the "mechanical observation device" and you are part of the experiment. – Ryan Thorngren Sep 9 '18 at 19:22
• "Mind" is not defined in physics and is poorly defined in biology/neuroscience/psychology. The issue comes from what counts as an "observation". Observation only implies an observer, not necessarily a conscious one. – Johnathan Gross Sep 9 '18 at 21:04
• You might be interested in physics.stackexchange.com/q/9857/25301 – Kyle Kanos Sep 10 '18 at 10:03