Reddit scienceFriday, October 2

Many argue "nationalist" matters more than "Christian," noting authoritarianism exists among atheists too. Others counter that faith-based thinking and Old Testament tribalism feed nationalism. Some say nationalists distort Christianity or use it mainly as an identity marker.

Users debate whether religious upbringing stunts cognitive development. Ex-believers describe questioning emerging despite indoctrination. They note that punishment for curiosity, homeschooling and fear of losing family and community keep many from leaving.

Critics call the post confirmation bias dressed as science. They note "is linked to" is weak, a vocabulary test is a narrow measure of intelligence, and the source is a pop-sci site. Some cite conflicting IQ-politics studies, prompting rebuttals about those studies' findings and authors.

Many felt the findings were obvious. They said night owls get labeled lazy and ruin their health conforming to early schedules. Users called for flexible hours, remote work and labor reform. Some argued morning people "won" because daylight work is naturally convenient.

Users with DSPD described drifting later on vacations, needing sleep meds, and sleep specialists giving up. Others suggested non-24 disorder, noted links to ADHD/ASD, and debated whether human clocks naturally run longer than 24 hours.

Commenters questioned whether chronotype itself causes worse health or whether sleep habits, lifestyle, ADHD or schedule mismatch explain it. Some wanted data on flexible schedules. Others noted Finland's extreme daylight variation may limit generalizability.

Users said the headline overstates the findings. Researchers still recommend 3–4 sessions weekly, and one session only slows the loss of blood pressure gains during busy periods. Others saw no contradiction: some exercise beats none, more is better, and stopping entirely reverts blood pressure.

Commenters praised isometrics for tendon health, injury prevention and physical therapy for tendinopathy. Some noted they're easier on joints. Others argued dynamic, loaded movements remain better for strength and muscle growth. Bodyweight-only fitness was also lauded.

Users explained that isometric exercise means muscles contract without changing length or joint angle. It involves holding a position like a plank or wall squat rather than doing reps. Farmer's carries and deadlifts were cited as isometric for the forearms, arms and back.

Many argue competing to be kind beats competing over wealth or aggression. Kindness isn't zero-sum, and if good is done, motive matters little. Others push back that toxic positivity can silence complaints of mistreatment.

Users distinguish being kind from using kindness as a tool. Some note public generosity can shield abusers or create obligation, as with Chinese bill-fighting ("da fang") or Southern charm. Others counter that recipients care about results, not intent.

One user argues self-interest is always present and reciprocal kindness is rational. Critics reply that altruism by definition excludes personal gain, and that helping those who can't repay still matters because humans evolved to cooperate.

Users welcomed research into animal communication, with some arguing people wrongly see humans as special and forget we're animals too. Others countered that humans remain unique, citing moon landings and computing versus animals' limited vocabularies.

Users discussed how elephants' subsonic rumbles, felt through their feet, may complicate decoding. Some said the mechanism resembles hearing, but others noted that linking sensor data to behavior is the hard part. Users also speculated about song-like cadences and signals sent with ears and trunk.

Commenters saw decoding animal speech as one of AI's few genuinely good uses. They suggested machine learning could enable deeper communication with animals, naming elephants and dolphins as likely first targets. One user wondered what happens if elephant calls prove to be a complex language.

Skeptics called the link spurious and raised reverse causation, since depression makes activity harder. Others cited RCT meta-analyses showing exercise reduces anxiety and depression. Critics replied that one pathway can't explain observational data.

Users asked whether walking itself helps or whether socializing, less screen time, suburban living, physical ability or free time drive the effect. Some suggested social and physical activity combined likely has the strongest impact.

Commenters said exercise boosts BDNF, brain volume, connectivity and endorphins, so inactivity impairs the brain. Some tied the lack of a plateau to ancestral levels of 25-30k steps. Others shared anecdotes of walks improving mood.

Users asked if ADHD or genetics were controlled for. One noted no controls for parental psychiatric conditions or income, reliance on parent self-reports, and unused adoptive-mother data. Others debated whether ADHD is environmental or neurological.

Some expected Boomers and Gen X raised with little supervision to object. Others argued kids are already overstructured and helicopter parenting breeds anxiety. Some noted warmth, consistent boundaries and independence aren't mutually exclusive.

Commenters shared how emotional and physical neglect worsened C-PTSD and stunted social skills, stressing early childhood's role in self-esteem. Some said many people shouldn't have kids, citing affordability and the state of the world.

Swiss glaciers lost over 5% of their ice volume in 2026, thinning 2.5–4 m on average and up to 10 m at some tongues. Rhône, Aletsch and Clariden saw record melt, while Bella Tola and Griessfirn vanished entirely. Nearly 20% of glacier volume has disappeared in five years.

Grindelwald built viewing platforms ever deeper into its gorge to reach the retreating ice but gave up after the 1950s. A 70-year-old photo now marks where the ice was, with the edge another kilometre away. Chamonix's Vallée Blanche has a similar story of abandoned platform extensions.

Commenters questioned whether a 60% vs 70% difference among only 26 animals is meaningful, with one calling it garbage. Others asked how researchers determined which chimps were "friends" and how many never stole at all.

One user pointed to the 2003 cucumbers-and-grapes fairness experiment on capuchin monkeys as related work. Another joked that the rates still amount to "a lot of thievin'."

One user groaned at the study's findings, joking that Alaska is already swampy enough without its soils changing further.

A reply quipped that things might be different if Alaska had voted for Gore in 2000, sarcastically linking climate outcomes to past election choices and climate policy.

A commenter asked whether the changing soil conditions could raise the risk of landslides, questioning whether the study addressed this hazard.