governments.tex (7665B)
1 \documentclass[c]{beamer} 2 3 %\usepackage{helvet} 4 \usepackage{calc} 5 \usepackage[utf8]{inputenc} % set your input encoding differently, if you want 6 \usepackage[english]{babel} 7 8 \usepackage{enumitem} 9 \usepackage{eurosym} 10 \usepackage{tikz} 11 \usepackage{pgfgantt} 12 \usepackage{amsmath,amssymb} 13 \usetikzlibrary{shapes,arrows} 14 \usetikzlibrary{positioning} 15 \usetikzlibrary{calc} 16 \usepackage[absolute,overlay]{textpos} 17 18 %\setbeameroption{show notes} 19 20 \setlist[itemize]{label=$\bullet$} 21 22 23 \def\checkmark{\tikz\fill[scale=0.4](0,.35) -- (.25,0) -- (1,.7) -- (.25,.15) -- cycle;} 24 25 \setbeamertemplate{navigation symbols}{} 26 %\setbeamercovered{transparent=10} 27 \setbeamertemplate{navigation symbols}{\url{taler.net}} 28 %\setbeamertemplate{section in toc}[sections numbered] 29 30 % Adapt title information 31 % ======================= 32 \title{GNU Taler \\ Payments for the Common Good} 33 \institute{The GNU Project} 34 %\author{Christian Grothoff \& Sva} 35 %\date{5.7.2017} 36 37 % Some common packages 38 % ==================== 39 \usepackage{units} 40 \usepackage{amsbsy} 41 \usepackage{amsmath} 42 \usepackage{amssymb} 43 \usepackage{graphics} 44 \usepackage{epsf} 45 \usepackage{epsfig} 46 \usepackage{fixmath} 47 \usepackage{wrapfig} 48 49 50 \usetikzlibrary{snakes} 51 52 53 \begin{document} 54 55 \begin{frame} 56 \begin{center} 57 GNU Taler: Payments for the Common Good 58 59 % \includegraphics[width=0.66\textwidth]{logo-2017-fr.pdf} 60 \includegraphics[width=0.66\textwidth]{taler-logo-2017.pdf} 61 \end{center} 62 \begin{textblock*}{4cm}(.5cm,7.5cm) % {block width} (coords) 63 {\Large {\bf \url{taler.net}} \\ 64 % IRC{\bf \#taler} \\ 65 % {\small (on freenode)} \\ 66 twitter@taler \\ 67 mail@taler.net } 68 \end{textblock*} 69 70 \begin{textblock*}{4cm}(10cm,7.5cm) % {block width} (coords) 71 \includegraphics[width=2cm]{ashoka.png} 72 \end{textblock*} 73 74 \end{frame} 75 76 \section{The Problem} 77 \begin{frame}{The Problem} 78 79 3D secure (``verified by visa'') is a nightmare: 80 \begin{minipage}{5cm} 81 \begin{itemize} 82 \item Complicated process 83 \item Shifts liability to consumer 84 \item Significant latency 85 \item Can refuse valid requests 86 \item Legal vendors excluded 87 \item No privacy for buyers 88 \end{itemize} 89 \end{minipage} 90 \begin{minipage}{5cm} 91 \includegraphics[width=\textwidth]{illustrations/cc3ds.pdf} 92 \end{minipage} 93 \vfill 94 Online credit card payments will be replaced, but with what? 95 \end{frame} 96 97 98 \begin{frame}{The Problem} 99 \vfill 100 \begin{textblock*}{12cm}(0.5cm,1cm) % {block width} (coords) 101 \begin{itemize} 102 \item Global tech companies push oligopolies 103 \item Privacy and federated finance are at risk 104 % \item 30\% fees are conceivable 105 \item Economic sovereignty is in danger 106 \end{itemize} 107 \end{textblock*} 108 \begin{textblock*}{4cm}(3.5cm,5.2cm) % {block width} (coords) 109 {\includegraphics[width=\textwidth]{competitor-logos/amazon.png}} 110 \end{textblock*} 111 \begin{textblock*}{2cm}(7cm,3cm) % {block width} (coords) 112 {\includegraphics[width=\textwidth]{competitor-logos/alipay.jpeg}} 113 \end{textblock*} 114 \begin{textblock*}{2cm}(3cm,3.5cm) % {block width} (coords) 115 {\includegraphics[width=\textwidth]{competitor-logos/paypal.jpeg}} 116 \end{textblock*} 117 \begin{textblock*}{2cm}(9cm,5cm) % {block width} (coords) 118 {\includegraphics[width=\textwidth]{competitor-logos/applepay.jpeg}} 119 \end{textblock*} 120 \begin{textblock*}{2cm}(7.5cm,5.9cm) % {block width} (coords) 121 {\includegraphics[width=\textwidth]{competitor-logos/samsungpay.jpeg}} 122 \end{textblock*} 123 \begin{textblock*}{1cm}(9.5cm,6.3cm) % {block width} (coords) 124 {\includegraphics[width=\textwidth]{competitor-logos/android_pay.png}} 125 \end{textblock*} 126 \vfill 127 \end{frame} 128 129 130 \section{What is GNU Taler?} 131 \begin{frame}{What is GNU Taler?} 132 \vfill 133 \begin{center} 134 GNU Taler is an electronic instant payment system. 135 \end{center} 136 \begin{itemize} 137 \item Uses electronic coins stored in {\bf wallets} on customer's device 138 \item Think electronic {\bf cash}, with a few twists 139 \item Pay in {\bf existing currencies} (i.e. EUR, USD, BTC) 140 % or use it to create new regional currencies 141 \end{itemize} 142 \vfill 143 \begin{center} 144 Taler is {\bf not} a cryptocurrency. 145 \end{center} 146 \end{frame} 147 148 149 \begin{frame} 150 \frametitle{GNU Taler Overview} 151 \begin{center} 152 \begin{tikzpicture} 153 \tikzstyle{def} = [node distance= 5em and 6.5em, inner sep=1em, outer sep=.3em]; 154 \node (origin) at (0,0) {}; 155 \node (exchange) [def,above=of origin,draw]{Exchange}; 156 \node (customer) [def, draw, below left=of origin] {Customer}; 157 \node (merchant) [def, draw, below right=of origin] {Merchant}; 158 \node (auditor) [def, draw, above right=of origin]{Auditor}; 159 160 \tikzstyle{C} = [color=black, line width=1pt] 161 162 \draw [<-, C] (customer) -- (exchange) node [midway, above, sloped] (TextNode) {withdraw coins}; 163 \draw [<-, C] (exchange) -- (merchant) node [midway, above, sloped] (TextNode) {deposit coins}; 164 \draw [<-, C] (merchant) -- (customer) node [midway, above, sloped] (TextNode) {spend coins}; 165 \draw [<-, C] (exchange) -- (auditor) node [midway, above, sloped] (TextNode) {verify}; 166 167 \end{tikzpicture} 168 \end{center} 169 \end{frame} 170 % Demo here 171 172 173 \begin{frame}{Social Impact of Taler} 174 \begin{center} 175 \includegraphics[height=0.8\textheight]{social-impact.pdf} 176 \end{center} 177 \end{frame} 178 179 180 \begin{frame} 181 \frametitle{Possible outcomes (optimistic)} 182 \begin{itemize} 183 \item{Replace Mastercard/Visa/Paypal online} 184 \item[$\Rightarrow$]{Cheaper transactions $\equiv$ 3\% reduction in VAT} 185 \item{Replace cash and credit cards} 186 \item[$\Rightarrow$]{Faster business transactions in stores} 187 \item{Income via Taler is easily tracked by the government} 188 \item[$\Rightarrow$]{Less corruption, less tax evasion} 189 \item{Banks \& Spy Agencies can no longer track how you spend your money} 190 \item[$\Rightarrow$]{Privacy for citizens! Industrial espionage defense for business!} 191 \end{itemize} 192 \end{frame} 193 194 195 196 \begin{frame}{} 197 \vfill 198 \begin{center} 199 {Why should {\em governments} be interested?} 200 \end{center} 201 \vfill 202 \begin{center} 203 \includegraphics[height=3cm]{illustrations/usmint.jpeg} 204 \end{center} 205 \vfill 206 \begin{center} 207 {Why not do {\em online} what they do {\em offline}?\footnote{Just better: you can anonymously receive cash, but not Taler coins.}} 208 \end{center} 209 \end{frame} 210 211 212 213 \begin{frame} 214 \begin{center} 215 % \includegraphics[width=0.66\textwidth]{logo-2017-fr.pdf} 216 \includegraphics[width=0.66\textwidth]{taler-logo-2017.pdf} 217 \end{center} 218 \vfill 219 \hfill A GNU package 220 \end{frame} 221 222 \section{Comparison} 223 \begin{frame}{Comparison} 224 \begin{center} \small 225 \begin{tabular}{l||c|c|c|c|c} 226 & Cash & Bitcoin & ZCash & Creditcard & GNU Taler \\ \hline \hline 227 Online &$-$$-$$-$ & ++ & ++ & + & +++ \\ \hline 228 Offline & +++ & $-$$-$ & $-$$-$ & + & $-$$-$ \\ \hline 229 Trans. cost & + & $-$$-$$-$ & $-$$-$$-$ & $-$ & ++ \\ \hline 230 Speed & + & $-$$-$$-$ & $-$$-$$-$ & o & ++ \\ \hline 231 Taxation & $-$ & $-$$-$ & $-$$-$$-$ & +++ & +++ \\ \hline 232 Payer-anon & ++ & o & ++ & $-$$-$$-$ & +++ \\ \hline 233 Payee-anon & ++ & o & ++ & $-$$-$$-$ & $-$$-$$-$ {\bf (*)} \\ \hline 234 Security & $-$ & o & o & $-$$-$ & ++ \\ \hline 235 Conversion & +++ & $-$$-$$-$ & $-$$-$$-$ & +++ & +++ \\ \hline 236 Libre & $-$ & +++ & +++ & $-$ $-$ $-$ & +++ \\ 237 \end{tabular} 238 \end{center} 239 {{\bf (*)} Not having payee-anonymity is a good thing as otherwise money laundering 240 becomes a real problem.} 241 \end{frame} 242 243 244 \end{document}