diff --git a/.DS_Store b/.DS_Store
index 6a82df9..129443b 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/index.html b/index.html
index 0eb7e3b..1d32e17 100644
--- a/index.html
+++ b/index.html
@@ -94,6 +94,7 @@
                     <label for="seed">randomization seed:</label>
                     <input type="text" id="seed" name="seed" autocomplete="off" spellcheck="false" minlength="1" size="20" style="width: 120px;">
                     <br>
+                    <span id="previous-seed" style="color:#bbb"></span>
 
                     <label for="difficulty-select" title="effects: number of mobs, damage done by mobs, damage done to mobs, mob speed, heal effects">combat difficulty:</label>
                     <select name="difficulty-select" id="difficulty-select" style="background-color: #fff">
diff --git a/js/index.js b/js/index.js
index 8068b04..89ed114 100644
--- a/js/index.js
+++ b/js/index.js
@@ -6,12 +6,17 @@ Math.hash = s => { for (var i = 0, h = 9; i < s.length;) h = Math.imul(h ^ s.cha
 // const date1 = new Date()
 // Math.seed = date1.getUTCDate() * date1.getUTCFullYear(); // daily seed,  day + year
 // Math.seed = Date.now() //random every time:  just the time in seconds UTC
-Math.seed = Math.floor(Date.now() % 100000000) //random every time:  just the time in seconds UTC
+// Math.seed = Math.abs(Math.hash(String(Date.now()))) //update randomizer seed in case the player changed it
+
+// document.getElementById("seed").placeholder = Math.seed = Math.initialSeed = Math.floor(Date.now() % 100000) //random every time:  just the time in milliseconds UTC
+
+
+document.getElementById("seed").placeholder = Math.initialSeed = String(Math.floor(Date.now() % 100000))
+Math.seed = Math.abs(Math.hash(Math.initialSeed)) //update randomizer seed in case the player changed it
 Math.seededRandom = function(min = 0, max = 1) { // in order to work 'Math.seed' must NOT be undefined
     Math.seed = (Math.seed * 9301 + 49297) % 233280;
     return min + Math.seed / 233280 * (max - min);
 }
-document.getElementById("seed").placeholder = Math.seed //display seed in settings
 //Math.seed is set to document.getElementById("seed").value in level.populate level at the start of runs
 // console.log(Math.seed)
 
@@ -269,6 +274,7 @@ ${botText}
 <br>position: (${player.position.x.toFixed(1)}, ${player.position.y.toFixed(1)}) &nbsp; velocity: (${player.velocity.x.toFixed(1)}, ${player.velocity.y.toFixed(1)})
 <br>mouse: (${simulation.mouseInGame.x.toFixed(1)}, ${simulation.mouseInGame.y.toFixed(1)}) &nbsp; mass: ${player.mass.toFixed(1)}      
 <br>
+<br>seed: ${Math.initialSeed}
 <br>level: ${level.levels[level.onLevel]} (${level.difficultyText()}) &nbsp; ${m.cycle} cycles
 <br>${mob.length} mobs, &nbsp; ${body.length} blocks, &nbsp; ${bullet.length} bullets, &nbsp; ${powerUp.length} power ups
 
diff --git a/js/level.js b/js/level.js
index c01a054..c1d1504 100644
--- a/js/level.js
+++ b/js/level.js
@@ -221,7 +221,10 @@ const level = {
         }
     },
     populateLevels() {
-        if (document.getElementById("seed").value) Math.seed = Math.hash(document.getElementById("seed").value) //update randomizer seed in case the player changed it
+        if (document.getElementById("seed").value) {
+            Math.initialSeed = String(document.getElementById("seed").value)
+            Math.seed = Math.abs(Math.hash(Math.initialSeed)) //update randomizer seed in case the player changed it
+        }
 
         if (simulation.isTraining) {
             level.levels = level.trainingLevels.slice(0) //copy array, not by just by assignment
diff --git a/js/powerup.js b/js/powerup.js
index a960fe9..c131884 100644
--- a/js/powerup.js
+++ b/js/powerup.js
@@ -1044,7 +1044,7 @@ const powerUps = {
     },
     pauseEjectTech(index) {
         if (tech.isPauseEjectTech || simulation.testing) {
-            if (Math.random() < 0.03) {
+            if (Math.random() < 0.04) {
                 tech.removeTech(index)
                 m.energy += 20.48;
             } else {
diff --git a/js/simulation.js b/js/simulation.js
index 7d3f89a..741e4ab 100644
--- a/js/simulation.js
+++ b/js/simulation.js
@@ -521,6 +521,14 @@ const simulation = {
     },
     firstRun: true,
     splashReturn() {
+
+        document.getElementById("previous-seed").innerHTML = `previous seed: <span style="font-size:80%;">${Math.initialSeed}</span><br>`
+        document.getElementById("seed").value = Math.initialSeed = Math.seed //randomize initial seed
+
+        //String(document.getElementById("seed").value)
+        // Math.seed = Math.abs(Math.hash(Math.initialSeed)) //update randomizer seed in case the player changed it
+
+
         simulation.clearTimeouts();
         simulation.onTitlePage = true;
         document.getElementById("splash").onclick = function() {
@@ -695,6 +703,7 @@ const simulation = {
         // simulation.makeTextLog(`input.key.left<span class='color-symbol'>:</span> ["<span class='color-text'>${input.key.left}</span>", "<span class='color-text'>ArrowLeft</span>"]`);
         // simulation.makeTextLog(`input.key.down<span class='color-symbol'>:</span> ["<span class='color-text'>${input.key.down}</span>", "<span class='color-text'>ArrowDown</span>"]`);
         // simulation.makeTextLog(`input.key.right<span class='color-symbol'>:</span> ["<span class='color-text'>${input.key.right}</span>", "<span class='color-text'>ArrowRight</span>"]`);
+        simulation.makeTextLog(`Math.seed <span class='color-symbol'>=</span> ${Math.initialSeed}`);
         simulation.makeTextLog(`<span class='color-var'>const</span> engine <span class='color-symbol'>=</span> Engine.create(); <em>//simulation begin</em>`);
         simulation.makeTextLog(`engine.timing.timeScale <span class='color-symbol'>=</span> 1`);
         // simulation.makeTextLog(`input.key.field<span class='color-symbol'>:</span> ["<span class='color-text'>${input.key.field}</span>", "<span class='color-text'>MouseRight</span>"]`);
diff --git a/js/tech.js b/js/tech.js
index 062105f..6ca5363 100644
--- a/js/tech.js
+++ b/js/tech.js
@@ -3067,15 +3067,13 @@ const tech = {
         },
         {
             name: "particle collider",
-            description: `<strong>clicking</strong> <strong class='color-m'>tech</strong> while <strong>paused</strong> <strong>ejects</strong> them<br><em><strong>3%</strong> chance to convert that tech into <strong class='color-f'>energy</strong></em>`,
+            description: `<strong>clicking</strong> <strong class='color-m'>tech</strong> while <strong>paused</strong> <strong>ejects</strong> them<br><em><strong>4%</strong> chance to convert that tech into <strong class='color-f'>energy</strong></em>`,
             maxCount: 1,
             count: 0,
             frequency: 1,
             frequencyDefault: 1,
-            allowed() {
-                return tech.isPauseSwitchField
-            },
-            requires: "unified field theory",
+            allowed() { return true },
+            requires: "",
             effect() {
                 tech.isPauseEjectTech = true;
             },
diff --git a/todo.txt b/todo.txt
index ebbf4ac..ac47cde 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,32 +1,33 @@
 ******************************************************** NEXT PATCH **************************************************
 
-all runs are now seeded
-seed defaults to the last 8 digits of UTC time in milliseconds
-set a custom randomization seed in settings
-seed controls:
-    at start - boss list, mob type list, level list, horizontal flip
-    during run - tech, gun, field choices, some custom level randomization
-doesn't control: mob spawns, mob size, some minor level differences, specific level boss choices, ammo reward values, specific tech effects
-
-bug fix with ground state
+seeds are displayed in pause menu and intro map
+seeds from your previous run is displayed in settings after you die
+fixed some minor seed inconsistency
 
 ******************************************************** TODO ********************************************************
 
+make railgun default fire mode for crouch harpoon?
+
+buff perfect diamagnetism
+
 make a seed/hash system that controls only the tech/guns/fields shown
+  URL sharing could include a seed
   seed will control:
-    seeded random at start done - random level boss, mob types list, level order, horizontal flip
+    seeded random at start - random level boss, mob types list, level order, horizontal flip
     seeded random during run - tech, gun, field choices
     not seeded random - mob spawns, mob size, minor level differences, custom level boss choices, ammo rewards, tech effect randomness
       better to only seed things at the start of the run so it doesn't mess with power up choices
-  put a seed display in top right corner of splash menu, or settings?
-    normal seed = full UTC time
-    make option for a daily seed: seed = day+year
-      give 1 extra tech for doing the daily seeded run
-      make the option for the daily run, a secret exit in the intro level?
-    figure out how to convert text into seed
-  display seed in pause menu
+  make option for a daily seed: seed = day+year
+    give 1 extra tech for doing the daily seeded run
+    make the option for the daily run, a secret exit in the intro level?
+  when you die
+    randomize seed
+      display new seed
+      show previous run seed
+      edit div in settings
+    
 
-tech upgrade to anthropic to make it trigger at 50% life and 0%
+tech upgrade to anthropic principle to make it trigger at 50% life and 0% once per map
 
 JUNK tech: https://bindingofisaacrebirth.fandom.com/wiki/Damocles