Q&A

Q&A

Did Stephen Hawking Predict Only 100 Years Left for Humans?

Stephen Hawking warned that humanity may have only 100 years left on Earth unless we become a multi-planetary species. He highlighted rising risks like climate change, overpopulation, nuclear war, asteroid impacts, deadly pandemics, genetically engineered viruses, and uncontrolled super-AI that could lead to extinction. Originally giving us 1,000 years, he shortened the timeline in 2017 […]

Q&A

What Is VPN? Benefits, Uses, and Security Explained Simply

A VPN (Virtual Private Network) creates a secure, encrypted tunnel between your device and the internet, hiding your real IP address and protecting your data. It uses strong AES-256 encryption and protocols like WireGuard or OpenVPN to keep your online activity private, especially on public Wi-Fi. Key benefits include online privacy, bypassing geo-blocks for streaming, […]

Q&A

Is Starlink Reliable in 2025? Real Performance and Speed

In 2025, Starlink delivers reliable high-speed satellite internet, especially in rural and remote areas. Typical download speeds exceed 200 Mbps (often 100–400 Mbps), uploads top 30–40 Mbps, and latency stays low at 25–30 ms, perfect for streaming, gaming, and video calls. Uptime is over 99.9%, with rare outages thanks to laser links, fast satellite handoffs, […]

Q&A

How Many Women Ran for President?

Over 50 women have run for U.S. President since 1872, starting with Victoria Woodhull before women could vote. Early trailblazers like Belva Lockwood and Margaret Chase Smith challenged the glass ceiling in major party primaries. Shirley Chisholm became the first Black woman to seek a major nomination in 1972. Hillary Clinton made history as the […]

Q&A

If an Alien Gave You 10 Seconds, What Big Question Would You Ask?

If an alien gave you just 10 seconds to ask one big question, what would it be? People dream of asking about faster-than-light travel, dark matter, black holes, or the meaning of life, morals, and the universe’s origin. Others want to know how aliens handle population, resources, government, religion, dreams, psychedelics, or superintelligence. Curious minds […]

Q&A

How Many People Are on Antidepressants Worldwide in 2025?

In 2025, about 200-300 million people worldwide take antidepressants for depression, anxiety, and other mood disorders. These drugs, like SSRIs and SNRIs, balance brain chemicals to ease symptoms. Depression affects 332 million adults, anxiety over 300 million, but treatment gaps leave 75% in low-income countries without help. High-income nations see 7.2% usage, led by Iceland, […]

Q&A

Which Unsolved Physics Mystery Still Baffles Scientists?

Physics is full of unsolved mysteries that baffle scientists. Dark matter (27% of the universe) and dark energy (68%) drive galaxies apart and speed up expansion, yet remain undetected. The cosmic microwave background supports inflation, but why the universe began so uniform is unknown. Matter dominates over antimatter due to baryon asymmetry, and the arrow […]

Q&A

Which Body Part Heals Fastest?

The cornea heals fastest—scratches often clear in 24-48 hours thanks to quick cell growth and eye lubrication. The mouth follows closely; tongue or cheek cuts mend in days, three times faster than skin, due to moist saliva, helpful bacteria, and active genes like SOX2 that speed repair with less scarring. Muscles and tendons heal well […]

Q&A

What Is Universe Vacuum Decay and Could It End Everything?

Universe vacuum decay is a quantum physics theory where our universe’s “false vacuum”—a metastable energy state—could suddenly shift to a true vacuum via quantum tunneling. This starts with a tiny bubble of true vacuum forming randomly, expanding at light speed, and rewriting physics: atoms disintegrate, fundamental forces collapse, and all matter vanishes instantly with no […]

Q&A

Why Is Voodoo Illegal in Louisiana?

Voodoo is not illegal in Louisiana—it’s protected by the First Amendment and state constitution as a legitimate religion. Myths about bans stem from old colonial laws like the 1724 Code Noir and 1817 New Orleans rules limiting gatherings in Congo Square to prevent slave rebellions. Suppression continued under Black Codes and Jim Crow, targeting rituals, […]