diff --git a/src/HowBadIsMyBatch.nbconvert.ipynb b/src/HowBadIsMyBatch.nbconvert.ipynb
index 787d598c99d..36c609fc447 100644
--- a/src/HowBadIsMyBatch.nbconvert.ipynb
+++ b/src/HowBadIsMyBatch.nbconvert.ipynb
@@ -6,10 +6,10 @@
    "id": "9de5907f-18f5-4cb1-903e-26028ff1fa03",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:35:10.622170Z",
-     "iopub.status.busy": "2023-01-18T17:35:10.621819Z",
-     "iopub.status.idle": "2023-01-18T17:35:12.599949Z",
-     "shell.execute_reply": "2023-01-18T17:35:12.599312Z"
+     "iopub.execute_input": "2023-01-19T17:36:17.266029Z",
+     "iopub.status.busy": "2023-01-19T17:36:17.265045Z",
+     "iopub.status.idle": "2023-01-19T17:36:19.172190Z",
+     "shell.execute_reply": "2023-01-19T17:36:19.171128Z"
     }
    },
    "outputs": [
@@ -17,11 +17,11 @@
      "name": "stderr",
      "output_type": "stream",
      "text": [
-      "2023-01-18 17:35:11.005213: I tensorflow/core/platform/cpu_feature_guard.cc:193] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  SSE4.1 SSE4.2 AVX AVX2 AVX512F FMA\n",
+      "2023-01-19 17:36:17.644280: I tensorflow/core/platform/cpu_feature_guard.cc:193] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  SSE4.1 SSE4.2 AVX AVX2 AVX512F FMA\n",
       "To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.\n",
-      "2023-01-18 17:35:12.477181: I tensorflow/core/platform/cpu_feature_guard.cc:193] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  SSE4.1 SSE4.2 AVX AVX2 AVX512F FMA\n",
+      "2023-01-19 17:36:19.049376: I tensorflow/core/platform/cpu_feature_guard.cc:193] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  SSE4.1 SSE4.2 AVX AVX2 AVX512F FMA\n",
       "To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.\n",
-      "2023-01-18 17:35:12.478483: I tensorflow/core/common_runtime/process_util.cc:146] Creating new thread pool with default inter op setting: 2. Tune using inter_op_parallelism_threads for best performance.\n"
+      "2023-01-19 17:36:19.051075: I tensorflow/core/common_runtime/process_util.cc:146] Creating new thread pool with default inter op setting: 2. Tune using inter_op_parallelism_threads for best performance.\n"
      ]
     }
    ],
@@ -46,10 +46,10 @@
    "id": "d1e4fa9e",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:35:12.603464Z",
-     "iopub.status.busy": "2023-01-18T17:35:12.602867Z",
-     "iopub.status.idle": "2023-01-18T17:35:12.608672Z",
-     "shell.execute_reply": "2023-01-18T17:35:12.608075Z"
+     "iopub.execute_input": "2023-01-19T17:36:19.174873Z",
+     "iopub.status.busy": "2023-01-19T17:36:19.174585Z",
+     "iopub.status.idle": "2023-01-19T17:36:19.180092Z",
+     "shell.execute_reply": "2023-01-19T17:36:19.179483Z"
     }
    },
    "outputs": [
@@ -57,7 +57,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "18.01.2023, 17:35:12 Uhr\n"
+      "19.01.2023, 17:36:19 Uhr\n"
      ]
     }
    ],
@@ -71,10 +71,10 @@
    "id": "ffad1c04",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:35:12.611473Z",
-     "iopub.status.busy": "2023-01-18T17:35:12.611087Z",
-     "iopub.status.idle": "2023-01-18T17:35:13.267355Z",
-     "shell.execute_reply": "2023-01-18T17:35:13.266670Z"
+     "iopub.execute_input": "2023-01-19T17:36:19.183617Z",
+     "iopub.status.busy": "2023-01-19T17:36:19.183100Z",
+     "iopub.status.idle": "2023-01-19T17:36:19.764914Z",
+     "shell.execute_reply": "2023-01-19T17:36:19.763979Z"
     }
    },
    "outputs": [
@@ -102,10 +102,10 @@
    "id": "194b7357",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:35:13.270308Z",
-     "iopub.status.busy": "2023-01-18T17:35:13.269947Z",
-     "iopub.status.idle": "2023-01-18T17:35:13.273582Z",
-     "shell.execute_reply": "2023-01-18T17:35:13.272841Z"
+     "iopub.execute_input": "2023-01-19T17:36:19.769003Z",
+     "iopub.status.busy": "2023-01-19T17:36:19.768340Z",
+     "iopub.status.idle": "2023-01-19T17:36:19.773901Z",
+     "shell.execute_reply": "2023-01-19T17:36:19.773224Z"
     }
    },
    "outputs": [],
@@ -119,10 +119,10 @@
    "id": "a793dff0",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:35:13.276129Z",
-     "iopub.status.busy": "2023-01-18T17:35:13.275800Z",
-     "iopub.status.idle": "2023-01-18T17:39:09.239722Z",
-     "shell.execute_reply": "2023-01-18T17:39:09.238997Z"
+     "iopub.execute_input": "2023-01-19T17:36:19.777068Z",
+     "iopub.status.busy": "2023-01-19T17:36:19.776562Z",
+     "iopub.status.idle": "2023-01-19T17:39:45.698260Z",
+     "shell.execute_reply": "2023-01-19T17:39:45.696966Z"
     }
    },
    "outputs": [
@@ -130,7 +130,7 @@
      "name": "stderr",
      "output_type": "stream",
      "text": [
-      "[WDM] - Downloading: 100%|██████████| 6.96M/6.96M [00:00<00:00, 30.5MB/s]\n"
+      "[WDM] - Downloading: 100%|██████████| 6.96M/6.96M [00:00<00:00, 92.7MB/s]\n"
      ]
     },
     {
@@ -172,15 +172,15 @@
       "Non-trainable params: 0\n",
       "_________________________________________________________________\n",
       "1/1 [==============================] - 1s 1s/step\n",
-      "textInCaptchaImage: bdB1fb\n",
-      "1/1 [==============================] - 0s 35ms/step\n",
-      "textInCaptchaImage: 48AFF9\n",
-      "1/1 [==============================] - 0s 34ms/step\n",
-      "textInCaptchaImage: c0e524\n",
+      "textInCaptchaImage: 40F767\n",
+      "1/1 [==============================] - 0s 37ms/step\n",
+      "textInCaptchaImage: 9D4F0b\n",
+      "1/1 [==============================] - 0s 33ms/step\n",
+      "textInCaptchaImage: a23DA9\n",
+      "1/1 [==============================] - 0s 37ms/step\n",
+      "textInCaptchaImage: 4448E0\n",
       "1/1 [==============================] - 0s 39ms/step\n",
-      "textInCaptchaImage: a1DF61\n",
-      "1/1 [==============================] - 0s 35ms/step\n",
-      "textInCaptchaImage: 315B9D\n"
+      "textInCaptchaImage: 76aCcE\n"
      ]
     }
    ],
@@ -196,10 +196,10 @@
    "id": "781ac80e",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:39:09.243301Z",
-     "iopub.status.busy": "2023-01-18T17:39:09.242840Z",
-     "iopub.status.idle": "2023-01-18T17:39:37.880818Z",
-     "shell.execute_reply": "2023-01-18T17:39:37.880162Z"
+     "iopub.execute_input": "2023-01-19T17:39:45.702231Z",
+     "iopub.status.busy": "2023-01-19T17:39:45.701990Z",
+     "iopub.status.idle": "2023-01-19T17:40:13.848357Z",
+     "shell.execute_reply": "2023-01-19T17:40:13.847154Z"
     }
    },
    "outputs": [
@@ -499,10 +499,10 @@
    "id": "8d6507ca",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:39:37.884078Z",
-     "iopub.status.busy": "2023-01-18T17:39:37.883528Z",
-     "iopub.status.idle": "2023-01-18T17:39:38.462670Z",
-     "shell.execute_reply": "2023-01-18T17:39:38.461976Z"
+     "iopub.execute_input": "2023-01-19T17:40:13.850799Z",
+     "iopub.status.busy": "2023-01-19T17:40:13.850495Z",
+     "iopub.status.idle": "2023-01-19T17:40:14.307068Z",
+     "shell.execute_reply": "2023-01-19T17:40:14.306200Z"
     }
    },
    "outputs": [],
@@ -516,10 +516,10 @@
    "id": "0915aa5a",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2023-01-18T17:39:38.466316Z",
-     "iopub.status.busy": "2023-01-18T17:39:38.466044Z",
-     "iopub.status.idle": "2023-01-18T17:39:56.017426Z",
-     "shell.execute_reply": "2023-01-18T17:39:56.015063Z"
+     "iopub.execute_input": "2023-01-19T17:40:14.311864Z",
+     "iopub.status.busy": "2023-01-19T17:40:14.311607Z",
+     "iopub.status.idle": "2023-01-19T17:40:31.004421Z",
+     "shell.execute_reply": "2023-01-19T17:40:31.003380Z"
     }
    },
    "outputs": [