Why I Don't Buy the A-Theory of Time
The A-Theory of Time says that there's a objectively real, constantly-shifting "present moment." But the harder you think about what that would mean, the stranger the idea gets.
Note: I chatted about this essay with Stefan Bertram-Lee on This is Revolution podcast. You can watch the conversation there or cross-streamed to GTAA.
If you took a philosophy class or two in college, you may have run into:
Brain-in-a-vat-style thought experiments about knowledge
Utilitarianism vs. Kantianism about morality
Mind-body dualism vs. materialism