Physics & Reality

Activation Energy: Favourable Is Not the Same as Likely

Paper on a table will not burn, though burning releases energy. Something has to supply the initial push — and most stalled intentions are barriers, not disagreements about value.

Half-Life: Why the Last Bit Takes So Long to Go

An afternoon coffee still has an eighth of its caffeine in you the next morning. Anything that loses a constant proportion per period behaves this way — including skills and knowledge.

Order Is Not the Default State of Anything

Left alone, every system trends toward disorder. Staying organized isn't natural — it's a constant, energy-consuming fight against physics.

Relativity: One Stubborn Fact and Everything That Follows

Light measures the same speed however fast you are moving. Take that seriously and distance and time have to bend — which is why your phone's position fix depends on the theory working.

The Observer Effect: Measuring Something Touches It

Checking a tyre's pressure lets out a little air, so the reading is never quite what was there before. With objects that hardly matters. With people it can be larger than what you were trying to measure.