Interesting stuff, Pete. Though this theoretically contradicts the experience of lots of people who've found marine (bearing) grease to be durable for bicycle applications. Unless we've been using marine bearing greases that are polyurea-based, which is possible.

What I'm interested in: do you know what greases, have which properties? Could you explain more the practical downsides of calcium-thickened grease? Etc. How is Phil Wood's grease made? And so on.
Thanks.

Plus, the maximum temperature for calcium grease seems just fine for bicycle bearings. Ever touched your hub and burnt your hand because it was near-boiling (90 degrees Celsius)? I didn't think so.