--- a/lib/strokedb/core_ext.rb
+++ b/lib/strokedb/core_ext.rb
@@ -6,4 +6,5 @@ require 'core_ext/enumerable'
 require 'core_ext/hash'
 require 'core_ext/fixnum'
 require 'core_ext/float'
-require 'core_ext/blank'
\ No newline at end of file
+require 'core_ext/infinity'
+require 'core_ext/blank'

--- /dev/null
+++ b/lib/strokedb/core_ext/infinity.rb
@@ -0,0 +1,32 @@
+# These are for use in Range arguments for View#find.
+# We don't provide correct spaceship operator <=>
+# to preserve performance.
+#
+class Object
+  def infinite?
+    false
+  end
+end
+
+class Numeric
+  def infinite?
+    self.abs == Infinity
+  end
+end
+
+InfinityString = Class.new(String) do
+  def infinite?
+    true
+  end
+end.new.freeze
+
+InfinityTime = Class.new(Time) do
+  def infinite?
+    true
+  end
+end.new.freeze
+
+# For use like (SmallestString.."a") in View#find()
+#
+LargestString = SmallestString = InfinityString
+LargestTime   = SmallestTime   = InfinityTime

--- /dev/null
+++ b/spec/lib/strokedb/core_ext/infinity_spec.rb
@@ -0,0 +1,40 @@
+require File.dirname(__FILE__) + '/spec_helper'
+
+describe "Object#infinity?" do
+  it "should return false for the finite values" do
+    Object.should_not be_infinite
+    Object.new.should_not be_infinite
+    String.new.should_not be_infinite
+    Time.now.should_not be_infinite
+    :sym.should_not be_infinite
+    nil.should_not be_infinite
+    false.should_not be_infinite
+    true.should_not be_infinite
+    Float::MAX.should_not be_infinite
+    2.71828.should_not be_infinite
+    42.should_not be_infinite
+    (1..Infinity).should_not be_infinite # yep, this too.
+  end
+  it "should return true for infinite 'values'" do
+    Infinity.should be_infinite
+    (-Infinity).should be_infinite
+    (InfinityString).should be_infinite
+    (InfinityTime).should be_infinite
+  end 
+end
+
+describe InfinityString do
+  it "should be used in Range" do
+    (InfinityString.."a").should be_a_kind_of(Range)
+    ("a"..InfinityString).should be_a_kind_of(Range)
+    (InfinityString..InfinityString).should be_a_kind_of(Range)
+  end
+end
+
+describe InfinityTime do
+  it "should be used in Range" do
+    (InfinityTime..Time.now).should be_a_kind_of(Range)
+    (Time.now..InfinityTime).should be_a_kind_of(Range)
+    (InfinityTime..InfinityTime).should be_a_kind_of(Range)
+  end
+end