This is LuaHBTeX, Version 1.17.0 (TeX Live 2023/Debian) (format=lualatex 2025.1.15) 10 MAR 2025 16:38 restricted system commands enabled. **trillionYearsOfEarth.tex (./trillionYearsOfEarth.tex LaTeX2e <2023-11-01> patch level 1 L3 programming layer <2024-01-22> Lua module: luaotfload 2023-08-31 3.26 Lua based OpenType font support Lua module: lualibs 2023-07-13 2.76 ConTeXt Lua standard libraries. Lua module: lualibs-extended 2023-07-13 2.76 ConTeXt Lua libraries -- extended c ollection. luaotfload | conf : Root cache directory is "/home/htaf/.texlive2023/texmf-var/l uatex-cache/generic/names". luaotfload | init : Loading fontloader "fontloader-2023-08-19.lua" from kpse-res olved path "/usr/share/texlive/texmf-dist/tex/luatex/luaotfload/fontloader-2023- 08-19.lua". Lua-only attribute luaotfload@noligature = 1 luaotfload | init : Context OpenType loader version 3.133 Inserting `luaotfload.node_processor' in `pre_linebreak_filter'. Inserting `luaotfload.node_processor' in `hpack_filter'. Inserting `luaotfload.glyph_stream' in `glyph_stream_provider'. Inserting `luaotfload.define_font' in `define_font'. Lua-only attribute luaotfload_color_attribute = 2 luaotfload | conf : Root cache directory is "/home/htaf/.texlive2023/texmf-var/l uatex-cache/generic/names". Inserting `luaotfload.harf.strip_prefix' in `find_opentype_file'. Inserting `luaotfload.harf.strip_prefix' in `find_truetype_file'. Removing `luaotfload.glyph_stream' from `glyph_stream_provider'. Inserting `luaotfload.harf.glyphstream' in `glyph_stream_provider'. Inserting `luaotfload.harf.finalize_vlist' in `post_linebreak_filter'. Inserting `luaotfload.harf.finalize_hlist' in `hpack_filter'. Inserting `luaotfload.cleanup_files' in `wrapup_run'. Inserting `luaotfload.harf.finalize_unicode' in `finish_pdffile'. Inserting `luaotfload.glyphinfo' in `glyph_info'. Lua-only attribute luaotfload.letterspace_done = 3 Inserting `luaotfload.aux.set_sscale_dimens' in `luaotfload.patch_font'. Inserting `luaotfload.aux.set_font_index' in `luaotfload.patch_font'. Inserting `luaotfload.aux.patch_cambria_domh' in `luaotfload.patch_font'. Inserting `luaotfload.aux.fixup_fontdata' in `luaotfload.patch_font_unsafe'. Inserting `luaotfload.aux.set_capheight' in `luaotfload.patch_font'. Inserting `luaotfload.aux.set_xheight' in `luaotfload.patch_font'. Inserting `luaotfload.rewrite_fontname' in `luaotfload.patch_font'. Inserting `tracingstacklevels' in `input_level_string'. ! Undefined control sequence. l.2 \section {Preface} ? X Here is how much of LuaTeX's memory you used: 19 strings out of 476553 100000,1977958 words of node,token memory allocated 301 words of node memory still in use: 1 hlist, 1 dir, 3 kern, 1 glyph, 1 attribute, 39 glue_spec, 1 attribute_list nodes avail lists: 2:10,3:3,4:1 22127 multiletter control sequences out of 65536+600000 14 fonts using 591679 bytes 12i,0n,13p,45b,15s stack positions out of 10000i,1000n,20000p,200000b,200000s warning (pdf backend): no pages of output. PDF statistics: 0 PDF objects out of 1000 (max. 8388607) 0 named destinations out of 1000 (max. 131072) 1 words of extra memory for PDF output out of 10000 (max. 100000000)