Is feminism falsifiable?

An old device called a stereopticon held two photographs taken from closely related viewpoints, such that on looking into it the observer saw a three-dimensional view of the photographed scene. This proves that we unconsciously construct, in our brains, a three-dimensional space out of two two-dimensional images, one per retina. Also, if you have someone hold up a finger, it is easy to bring your finger down on to its tip, but if you try this with one eye closed it is difficult -- proving that two eyes are necessary for seeing three-dimensional space. But this means that our three-dimensional visual space is inside our heads, whereas we clearly experience it as out side our heads. So which is it?

Is it 'selfish', as is sometimes indignantly alleged, for an MP - I'm thinking of the UK parliamentary system - to vote on a Bill according to principle when that principle does not follow the party line?

Today you can read a lot about ethical and unethical doing and specially about companies that do act unethically or unfair. For a public person it's not always easy to determine if such accusations are righteous or not. My question: Is it unethical to invest in shares of companies, whose reputations are not that good because they are accused of repression of employees or groups (or supporting such repression), exploitation of nature and human, etc.?

I believe that all human actions are born of self-interest (even 'selfless' acts are committed in order to assuage guilt or obtain approval from others). Do any great thinkers agree with this most cynical proposition? Is there any such thing as genuine altruism?

At what point does an immoral act, i.e. one that is in direct contrast to the ethics and laws of society, become an evil one? Both can be intentional, and with full knowledge of injury that the act will cause. Can we say that evil is an enjoyment of the injury? Is that the differentiating factor? My 17 year-old son asked me this question and we became a bit bogged down! --Laura (Australia)

What is music? Does music have to be mathematical and notated? Does it have to contain "melody" and "harmony"? Can the most abstract noise coming from any given source be considered "music"? Is music really art, in the accepted sense, when most music is made by accident? -David

Am I morally bound to tell my sex partner if I fantasize about someone else whilst making love to her? Or the subject of the fantasy for that matter? SteveB

I was wondering "Where in my body does my sense of self seem to be centred?" For me, the answer was "In my skull behind where my eyes are." That is, I associate myself with where my primary senses are, i.e. the eyes, ears, nose and mouth. Assuming this is a normal reaction, does a person who is lacking one or more senses (e.g. blind from birth) subjectively feel centred in another part of their body? If the answer is yes, does this give any insight into the nature of self-awareness?

Is the question of whether God (or a god) can be posited as the 'designer' of the universe related in any way to the question of whether we can know anything about an author from studying their books?