| 1 | With no remaining mysteries, the scientific journey would halt. | |
| 2 | Google pulled the plug after just a few months when the service wasn't an immediate hit. | |
| 3 | It was only when the global financial crisis gained momentum that the markets reacted and capital flows suddenly stopped. | |
| 4 | It's like there's a certain part of your life when you learn things, and then you just stop. | |
| 5 | In 1929 the Wall Street Crash brought boom time to an abrupt close and hems dropped almost overnight. |