jimrandomh comments on The lymphatic system is found to connect to the Central Nervous System - Less Wrong

5 Post author: ChristianKl 05 June 2015 09:32AM

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Comment author: jimrandomh 05 June 2015 10:07:40PM 2 points [-]

As far as I know there isn't any direct reason why this would make uploading harder; it's a non-computational element. But the fact that it took so long to discover it does mean we should expect to have missed more things.

Comment author: CellBioGuy 06 June 2015 12:49:27AM *  2 points [-]

I saw a fun talk at a conference in December where Jeff Lichtman showed us some of his processed data from his 5x5x30 nanometer resolution mouse brain tissue electron microscope scans (of which probably a 30 micron wide cylinder was actually properly annotated). He mentioned that only 40% of the things-that-were-clearly-synapses in the annotated dataset were the large spine-based synapses that have been well studied, and that there were a couple cells in there that he had no idea what they were at all.