To imagine 12°C of global warming, think of crocodiles swimming in the Arctic and scorched, mostly lifeless equatorial regions. If stratocumulus clouds disappear, as a new simulation suggests could happen in as little as a century, this is the future.
May 18, 2019
From Quanta Magazine via Twitter:
May 5, 2019
Listening to blues while reading Sagan on time travel, especially when it comes to the philosophical problem of time travel from the future - it is probably inconsistent with any sort of 'hard determinism', but may be possible if the inherent randomness (of the 'one' world, or of the one incurred in the 'blurrification' of closed but different timelines) could mask or absorb the 'travelers' (in which case, even if time travel from the future exists, it is not what one would normally think).