Limit

8

Why Science Will Never Know Everything About Our Universe

“The Universe itself may be finite or may be infinite; the jury is still out. But one thing is certain: the part that’s accessible to us is finite. Even with the expanding Universe, even with all the galaxies and stars and planet and molecules and atoms and subatomic particles in it, there’s only so much we can access. And those limitations – the total numbers of particles and the total amount of energy available in the Universe – means there’s only a finite amount of information we can determine about our cosmos. For the first time, we can quantify that, and begin to infer which things we might never understand.”

As we peel back the layers of information deeper and deeper into the Universe’s history, we uncover progressively more knowledge about how everything we know today came to be. The discovery of distant galaxies and their redshifts led to expanding Universe, which led to the Big Bang and the discovery of very early phases like the cosmic microwave background and big bang nucleosynthesis. But before that, there was a period of cosmic inflation that left its mark on the Universe. What came before inflation, then? Did it always exist? Did it have a beginning? Or did it mark the rebirth of a cosmic cycle? Maddeningly, this information may forever be inaccessible to us, as the nature of inflation wipes all this information clean from our visible Universe.

Go find out why some things are inherently unknowable on this special edition of Starts With A Bang!

I sound awful saying it but I think it can be like that. I see a lot of people in unstimulating relationships. And not just boyfriend-girlfriend relationships. They find themselves in stagnant friendships. If people were a little less scared of ending things they’d get more out of life… You meet the right person at the right time and they fulfill a certain something in your life. You fulfill something in theirs. But there’s a time limit to that.
—  Laura Marling
Nella vita ho imparato una sola cosa sui rapporti tra umani: che durano solo se c’è volontà da entrambe le parti.
Chi vuole farsi sentire, lo fa e basta.
Non c’è scusa che tenga. Il tempo lo trovi, i problemi li metti da parte un attimo, la fidanzata gelosa la ignori un nanosecondo, gli esami li fai aspettare.
Ci sono momenti in cui un amico ha un terribile bisogno d’abbracci e tu devi essere lì, per darglieli. O ci sei o puoi anche non esserci più.
Niente se, niente ma, niente scuse.
Se c’è interesse, si mette da parte anche l’orgoglio.
Questo è il limite che separa i rapporti con le persone a cui teniamo da quelli di cui possiamo fare a meno.
Se a una persona ci tieni, alzi le chiappe e la vai a raggiungere.
Anche in capo al mondo, anche in aeroporto, anche sull’altare mentre si sposa con un altro, se serve.
E non contare le volte in cui s’è fatto sentire lui o lei, non contare quanto passa da un caffè all’altro.
Il vedersi sempre non è importante, è più importante il sapersi.
—  whodoyouwantobe