diff --git a/os/frisbee.redux/IDEAS b/os/frisbee.redux/IDEAS
index 36d827555531bbdfc846479982a8815c03c5570a..2c66c32501616bb259460f7049445bc5a32bef79 100644
--- a/os/frisbee.redux/IDEAS
+++ b/os/frisbee.redux/IDEAS
@@ -20,12 +20,21 @@ Sources of info for the following include (from the testbed source repo):
    Disk:
    * 40GB -> 500-1000GB (12-25x increase in capacity)
    * ~50MB/sec -> ~100-150MB/sec (2-3x increase in throughput)
+   * 7200-10000 rpm -> 7200-15000 rpm (0-1.5x decrease in rotational delay)
+   SSDs:
+   * 64-256GB
+   * 100-250MB/sec
+   * near zero latency
    Net:
    * 100Mb/sec -> 1000Mb/sec (10x increase in BW)
 
    The bottlenecks and thus trade-offs have changed.  This drives the changes
    below that we have made to frisbee...blah, blah.
 
+   One example: drives have become faster due to increased density, but
+   heads/spindles don't move much faster.  Thus avoiding seeks becomes even
+   more important.
+
    Is disk imaging still relevant?  There has been an increasing shift toward
    virtualization, and with that, the use of virtual disks.  These disks can
    be logically copied from a master disk; e.g., using COW techniques.  There