Australia’s birth rate is plummeting with more of us choosing to have one child, or none. So what will this mean for the future?

Baby Boomers are much maligned, but what Millennials mightn't know is how much their parents' generation pushed boundaries for social change. Insight meets single mothers who kept their babies despite pressure to abort or adopt, one of the first Matildas who played in the national soccer team before it even had a name and other trailblazing Boomers who broke taboos- from religion to gender to sex, asking how much have things changed?

Samia was a carefree 19-year-old when an older, charismatic stranger asked her to sail the world with him. Samia tells host Kumi Taguchi how her decision, and the real identity of the man who seduced her, would change her life forever. Insight hears from guests who've made fateful decisions - for better or worse.

A police sniper from the Lindt Cafe Siege explains the overwhelming guilt he felt for the deaths of two hostages, while a woman admits feeling guilty for having an affair with a married man, breaking up his marriage. Host Kumi Taguchi explores why guilt can have such a powerful hold on us, and also why it can be a positive emotion, harnessed for good.

They say revenge is a dish best served cold. This week, we speak to those who’ve sought revenge and those on the receiving end. Insight asks what drives us be vengeful and what the consequences are for both victims and perpetrators?

Tech has made it easier to keep tabs on others. When is being watched okay and when does it cross the line?

Can relationships of convenience truly last? Kumi Taguchi meets two single mums who combined their households to co-parent together, a migrant who married an Australian man for a better life, and a woman who found her sperm donor online. Insight also hears from a self-described “sugar daddy” and a private escort to learn about the ins and outs of transactional, sexual relationships.

Australia’s biggest Kylie Minogue fan meets a woman whose marriage ended because her husband was obsessed with Liza Minneli. Host Kumi Taguchi also hears from a woman who stalked Justin Bieber as well as super fans of sports teams and TV shows. Why do people become super fans and what happens when it goes too far?

A young Christian man gives up his friends, his studies, and his love of football after joining a cult recruiting on university campuses. A mother fears her daughter has joined a cult, while another mum says her life was destroyed through a cult-like MLM. Insight’s Kumi Taguchi looks at how modern-day cults are different, and why we’re still drawn to them today.

A wedding Grinch, a groom whose mother was spear-tackled, a runaway bride, and made-to-order breasts for a bride who was “healed” by her dream wedding day. On this episode of Insight – amidst joy, tears, regret, and true love – we examine why weddings are still popular today, despite less social pressure to marry. And why we're still so wedded to the tradition.

How do we judge how old is too old? And who gets to decide?

Is the push for diversity broadening our horizons or stifling us?

Join Kumi Taguchi as she speaks with those who roll up their sleeves and dive in to help when someone's in trouble. From surf lifesavers, police rescuers, paramedics to Good Samaritans, this Insight episode explores what happens when that person arrives to be with you on the worst day of your life, and at what cost to those involved?

When media drives the court of public opinion, how does that impact the legal process and does anyone win?

Old war, new frontier: will the crackdown on commercial vapes be a win for public health policy and stop the next generation getting hooked on nicotine?

Secrets and Lies - is the truth always best?

Divorce rates are going down overall, but the over 50s are bucking that trend. Why are more older couples calling it quits and what are the impacts?

Hallucinations, bright lights, out of body experiences, and visits from dead relatives – just some of the puzzling phenomena reported by guests, who share their close brush with death. What can science tell us about near-death experiences, and how do they change our relationship to life?

The Baby Boomer generation is the richest in history. Their spending is reshaping industries like tourism, property, and health. But the cashed-up stereotype isn’t the case for all Boomers. Insight explores how Boomers are spending, and what will happen when all that wealth is handed down to the next generations.

Is a second chance a blessing or a curse? Insight host Kumi Taguchi explores what happens when we’re given or give another chance- in life, career, love or a new homeland, or after making a mistake. Guests include Olympic medallist, Geoff Huegill and Australia’s first MasterChef, Julie Goodwin.

The Dating Gamble: On this episode, guests share their experiences of hook-ups, being ghosted, dating app fatigue, swipe addiction, and the ups and downs of finding love in the digital age. After 30 years of online dating, is it still worth the gamble, and do dating apps really want us to find love?

Regrets: most of us have had a few. But what happens if they take over our lives? From ruining a friend’s birthday to cutting contact with a family member, losing a loved one or working years in a job you hate, Insight hears from people haunted by their decisions. But can regret be useful, and is a life of no regrets really possible?

How can we fix Australia's housing issues with a building industry in crisis?

Australians are spending billions of dollars a month on looking good. Are we too quick to judge the pursuit of physical perfection?

For many of us, university seems like the default beyond school. But, with cost-of living expenses, high tuition fees, a volatile job market, the introduction of alternative pathways, and debate over the quality of education, is the uni experience still good value and is a degree worth the debt?

Men are struggling to hold onto friends. How powerful can male friendships be and do we need to rethink what being a mate is all about?

Only child families are on the rise. What are the pros and cons?

Australia is making it harder to get game-changing weight loss drugs. Are they a long-term solution and how are they changing us and our relationship to weight?

Is the drive to create a legacy worth the pressure on ourselves and others?

How do memories define us and can we always trust them?

How does our perception of the future impact our behaviour in the present?

How are we acknowledging our shared past and are we getting it right?