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It’s easy to feel smug around kids. You might not have it all together — you might, in fact, be rapidly disintegrating professionally and psychologically — but at least you can spill some apple juice without wailing inconsolably for six hours. Comparatively terrible things happen to you all the time, and you don’t freak out about it, or if you do, you do so quietly, not right there in the gym/office/Macca's parking lot.

But are you really feeling any less, or have you just become more adept at deceiving others, and/or yourself?

Dogs wear their hearts on their sleeves. Cats — or at least some cats, some of the time — can spend years at your side without making it totally clear that they know, or care, who you are. An expression vaguely resembling contentment flits across their face and you think, triumphantly, "See! My cat doesn’t despise me."

We humans are masters of resentment — a characteristic that can be traced back the beginnings of recorded history. Feuds seem to be an indelible aspect of the human condition, but why should this be? We spoke to the experts to find out why we love to hold a grudge, and the importance of letting go.

I tend to have very vivid dreams. I recently dreamed that I hit a home run at Wrigley Field as a member of my favourite baseball team, the Chicago Cubs, for example. But I also dreamed the clown from It came to haunt me at the top of every hour as I roamed a crowded casino.

Not everyone who is close to death — or thinks they are, at least — has a “near-death experience”. But those who do often hallucinate that they leave their bodies, meet otherworldly beings, or see bright flashes and tunnels of light. Those who take the psychedelic drug dimethyltryptamine, or DMT — a compound found in the hallucinogenic Amazonian brew known as ayahuasca — experience many of the same things.

Every life-stage has its share of novelty — first kiss, first tax return, first twinge of certain death — but when it comes to new experiences most of us peak in infancy. Just laying there, gargling and soiling our nappies, we as infants cycle through thousands of firsts.

It would be nice to remember some of them, as our lives slow down — as we settle into the same office chair for the 200th time, and sip from the same novelty coffee mug. But infancy scans as a blank for most of us.

If life is but a tapestry, then memory is the thread. But some of those threads may simply be imagined: A new study out today in Psychological Science suggests that our earliest memories often couldn’t have happened the way we remember them.

Animal rights activists have done stellar work in foregrounding the question of creature-consciousness: no meat-eater is now ignorant of the fact that their food once lived, breathed, maybe nuzzled its kin in a blood-soaked slaughterhouse. Environmentalists have a harder go of it. Fracking footage will always be less upsetting than your average fast food expose: Plants, after all, can't wail frantically as they're mowed down by the millions. But does that mean they're not conscious? Is it sensible, or desirable, to start anthropomorphizing crabgrass and dandelions, or are plants really as insensitive as we all instinctively assume?

Cats are enigmatic little creatures. It's hard to get a read on them. Does your cat love you, or would it gladly stab you in your sleep, if only it had thumbs and a slightly larger brain? The cat never tells - it thrives on inscrutability. But it can't help betraying certain signs of its inner life: It's hard to play things totally cool when you have a large, ungainly tail sticking out of your back, swishing this way and that for no immediately clear reason.

Dr Saalem Sadeque is a Marketing lecturer at CQ University in Perth who firmly believes that despite Facebook's recent and continued failings, we aren't going anywhere, because well - we are Facebook. And Facebook is us.

This is fine.

Anyone who's taken the psychedelic drug LSD (formally known as lysergic acid diethylamide), or spoken to someone who's taken it, knows it can be a utterly bonkers experience. A small new study published in the Journal of Neuroscience seems to offer some insight into what's happening in the brain while we're on a LSD trip. And it might even provide a hint as to how certain mental disorders develop.

Scientists have long been interested in understanding the underpinnings of empathy. Being able to share the feelings of another person plays a critical role in our inner lives, how we behave towards others, and the way human societies function as a whole. Harnessing the power of empathy, some suggest, could go a long way toward solving problems such as racism and sexism, and help us better understand non-neurotypical people. At the same time, another corner of the research world worries that constant immersion in technology is making it harder for today's kids to empathise.

Dramatic mood shifts while drinking alcohol are normal, but for some of us, booze takes us down a path toward nasty, belligerent and downright aggressive behaviour. By studying brain scans of drunk men, Australian scientists have pinpointed the parts of our brain that go weak when we drink, making us meaner than usual. But like so many aspects of human psychology, it's a lot more complicated than that.

The first Bitcoin transaction ever was by man who bought two pizzas. That arrangement would be worth over $123 million today. Regret was baked into Bitcoin from the beginning. Last year, somewhat inexplicably, Bitcoin's price rose more than 1000 per cent. That number has since dipped, but a single Bitcoin is still, as of this writing, worth around $13,760.

There could be a crisis in science, especially in the social and even medical sciences: Results are difficult to reproduce. Groundbreaking papers might reveal a first set of results, but attempts to repeat the studies reveal a different and sometimes even conflicting new set.